Ignazio Licata

School of Advanced International Studies on Applied Theoretical and non Linear Methodologies of Physics | SIASTMP · Department of Theoretical Physics

Chae’s analyses on GAIA observations of wide binary stars have fortified the paradigm of extended gravity with particular attention to MOND-like theories. We recall that, starting from the origin of Einstein’s general relativity, the request of Mach on the structure of the theory has been the core of the foundational debate. This issue is strictly...

Background: - From new results presented in the literature we discuss the hypothesis, presented in an our previous work, that the ultrafast periodic spectral modulations at fS=0.607±0.08 THz found in the spectra of 236 stars of the Sloan Digital Sky Survey (SDSS) were due to oscillations induced by dark matter (DM) cores in their centers that behav...

A model of Planck cells structure on the hyphersurface of a de Sitter universe is proposed and compared with the cellular automata of 't Hooft. Processes of nucleation of particles since a “primordial” Wheeler-DeWitt equation which embeds, with a parameter of deformation, a “Quantum Boltzmann Statistics” leading to obtain bosons and fermions, are a...

A model of a physical vacuum defined by a Gross–Pitaevskij equation and characterized by dissipative features close to the Planck scale is proposed, which provides an emergent explanation of scales, hierarchies and Higgs mass generation of the Standard Model. A fundamental nonlocal and nonlinear texture of the vacuum is introduced in terms of planc...

Every physical theory involving quantum fields requires a model of quantum vacuum. The vacuum associated to quantum gravity must incorporate the prescriptions from both the theory of relativity and quantum physics. In this work, starting from the hypothesis of nucleation of sub-Planckian bubbles from a de Sitter vacuum, we study the necessary condi...

In our previous work [Tamburini and Licata (2017)] we discussed the hypothesis that the ultrafast periodic spectral modulations with frequency $f_S \simeq 0.61$ THz found by Borra and Trottier (2016) in $236$ main sequence stars from a sample of $2.5$ million spectra of galactic halo stars of the Sloan Digital Sky Survey were due to axion-like dark...

– Every physical theory involving quantum fields does require a model of the quantum vacuum. The vacuum associated to quantum gravity must incorporate the prescriptions from both the theory of relativity and quantum physics. In this work, starting from the hypothesis of nucleation of sub-Planckian bubbles from a de Sitter vacuum, we study the neces...

Superfluid vacuum models are living a new season of interest both in quantum mechanics and in the physics of space-time. In this work we consider a toy model of the vacuum as a Bose condensate based on a peculiar version of the Gross-Pitaevskij equation where the degree of non-local correlation at a fundamental level is associated with the Bohm pot...

A theoretical description of quantum jumps at the level of elementary particles is proposed, based on a micro-cosmological interpretation of their de Broglie phase. The third quantization formalism proposed in current literature for the description of baby universes in quantum cosmology is used here to describe the breakdown of unitarity in the tra...

The Riemann Hypothesis states that the Riemann zeta function ζ ( z ) admits a set of “non-trivial” zeros that are complex numbers supposed to have real part 1/2. Their distribution on the complex plane is thought to be the key to determine the number of prime numbers before a given number. Hilbert and Pólya suggested that the Riemann Hypothesis cou...

A deterministic reformulation of quantum mechanics can bypass the usual philosophical interpretations of probability and stochasticity that are found in the literature. This can be obtained with the ontological formulation of quantum mechanics, obtained by writing the Hamiltonian of a quantum system in a way to render it mathematically equivalent t...

We propose a new thought experiment, based on present-day Quantum Information Technologies, to measure quantum gravitational effects through the Bose-Marletto-Vedral (BMV) effect by revealing the gravitational $t^3$ phase term, its expected relationships with low-energy quantum gravity phenomena and test the equivalence principle of general relativ...

The Riemann Hypothesis states that the Riemann zeta function $\zeta(z)$ admits a set of "non-trivial" zeros that are complex numbers supposed to have real part $1/2$. Their distribution on the complex plane is thought to be the key to determine the number of prime numbers before a given number.We analyze two approaches by applying the infinite-comp...

We consider the analogy between gravitational fields and optical media within the framework of geometrical optics in curved spacetime in order to describe how light can acquire orbital angular momentum (OAM) when it traverses the gravitational field of a massive rotating compact object; in particular, we analyze the interplay between OAM and polari...

The study of processes and change in systems is a requirement for Theoretical Physics after the development of complexity and emergence theories. This matter is far beyond the ideal models—centered on predictability—that Mathematical Physics usually deals with. The strongly interdisciplinary and systemic issue of a Theories of Change implies a care...

In periods of global pandemic such as that of COVID-19 in 2020, it is important to gather useful data to evaluate the effects of ordinances and government provisions on the trend of infections within different states. The use of predictive models on the duration of the infections, or the number of deaths and recoveries can be not very effective ove...

We apply the analogy between gravitational fields and optical media in the general relativistic geometric optics framework to describe how light can acquire orbital angular momentum (OAM) when it traverses the gravitational field of a massive rotating compact object and the interplay between OAM and polarization. Kerr spacetimes are known not only...

By applying Rosen's quantization approach to the historical Oppenheimer and Snyder gravitational collapse and by setting the constraints for the formation of the Schwarzschild black hole (SBH), in a previous paper [1] two of the Authors (CC and FF) found the gravitational potential, the Schrodinger equation, the solution for the energy levels, the...

The speed of light in vacuum, c, is a fundamental constant of nature. Photons belonging to a structured beam of finite transverse size have been observed to travel with a group velocity vg, smaller than c, also when propagating in vacuum. The paradox of slow photons in vacuum could, in a first approach, be explained as a simple projection effect th...

The problem of baryon asymmetry unifies cosmology and particle physics at the hearth of theoretical physics. In this work, we consider the point of view of archaic cosmology based on the de Sitter hypersphere as topology of quantum vacuum. We show CPT symmetry derives from the nucleation of particles that divides the hypersphere in two mirror unive...

We propose a new thought experiment, based on present-day Quantum Information Technologies, to measure quantum gravitational effects through the Bose-Marletto-Vedral (BMV) effect [1], [2], [3], [4] by revealing the gravitational t3 phase term, its expected relationships with low-energy quantum gravity phenomena and test the equivalence principle of...

We discuss, in the relativistic limits, Heisenberg's uncertainty principle for the electromagnetic orbital angular momentum (OAM) of monochromatic fields. The Landau and Peierls relativistic approach applied to the Heisenberg indetermination between the azimuthal angle φ and the OAM state , when a limit speed is present, exposes the conceptual limi...

The results obtained since the 70s with the study of Hawking radiation and the Unruh effect have highlighted a new domain of authority of relativistic principles [...]

In a recent paper Boyle, Finn and Turok hypothesized that the Universe does not violate the CPT-symmetry. Thus, a pair of universes is obtained, one prior to the other following the big bang, while the request for CPT-invariance strictly constrains the vacuum states of quantized fields, with notable consequences on cosmological scenarios. Here we r...

In a recent work, Turok, Boyle and Finn hypothesized a model of universe that does not violate the CPT-symmetry as alternative for inflation. With this approach they described the birth of the Universe from a pair of universes, one the CPT image of the other, living in pre- and post-big bang epochs. The CPT-invariance strictly constrains the vacuum...

In the last years, many different primeval quantization theories on the Planck scale have been developed. Their goal is to provide a vacuum model able to ground the research beyond the Standard Model. Despite their goal is quite ambitious and aims toward particle physics, a necessary and notable consequence is we can read Quantum Mechanics from an...

Einstein's equations of general relativity (GR) can describe the connection between events within a given hypervolume of size $L$ larger than the Planck length $L_P$ in terms of wormhole connections where metric fluctuations give rise to an indetermination relationship that involves the Riemann curvature tensor. At low energies (when $L \gg L_P$),...

Einstein’s equations of general relativity (GR) can describe the connection between events within a given hypervolume of size L larger than the Planck length L P in terms of wormhole connections where metric fluctuations give rise to an indetermination relationship that involves the Riemann curvature tensor. At low energies (when L ≫ L P ), these c...

It is shown that, for a de Sitter Universe, the Hartle-Hawking (HH) wave function can be obtained in a simple way starting from the Friedmann-Lemaitre-Robertson-Walker (FLRW) line element of cosmological equations. An oscillator having imaginary time is indeed derived starting from the Hamiltonian obtaining the HH condition. This proposes again som...

It is shown that, for a de Sitter Universe, the Hartle–Hawking (HH) wave function can be obtained in a simple way starting from the Friedmann–Lemaitre–Robertson–Walker (FLRW) line element of cosmological equations. An oscillator having imaginary time is indeed derived starting from the Hamiltonian obtaining the HH condition. This proposes again som...

In accordance with the Bohr’s standard interpretation [1, 2], which assumes the full symmetry of the entanglement relationship between quantum entities and the "agencies of observation", the conventional quantum-mechanical formalism does not contain prescriptions that differentiate the use of the concept of probability amplitude when applied to ato...

In this paper we analyze the Dark Matter problem and the distribution of matter through two different approaches, which are linked by the possibility that the solution of these astronomical puzzles should be sought in the quantum imprinting of the Universe. The first approach is based on a cosmological model formulated and developed in the last ten...

The Sagnac effect is usually considered as being a relativistic effect produced in an interferometer when the device is rotating. General relativistic explanations are known and already widely explained in many papers. Such general relativistic approaches are founded on Einstein’s equivalence principle (EEP), which states the equivalence between th...

The Sagnac effect is usually considered as being a relativistic effect produced in an interferometer when the device is rotating. General relativistic explanations are known and already widely explained in many papers. Such general relativistic approaches are founded on Einstein's equivalence principle (EEP), which states the equivalence between th...

This paper explores an event-based version of quantum mechanics which differs from the commonly accepted one, even though the usual elements of quantum formalism, e.g., the Hilbert space, are maintained. This version introduces as primary element the occurrence of micro-events induced by usual physical (mechanical, electromagnetic and so on) intera...

This paper explores an event-based version of quantum mechanics which differs from the commonly accepted one, even though the usual elements of quantum formalism, e.g., the Hilbert space, are maintained. This version introduces as primary element the occurrence of micro-events induced by usual physical (mechanical, electromagnetic and so on) intera...

This paper explores an event-based version of quantum mechanics which differs from the commonly accepted one, even though the usual elements of quantum formalism, e.g., the Hilbert space, are mantained. This version introduces as primary element the occurrence of micro-events induced by usual physical (mechanical, electromagnetic and so on) interac...

In this paper we want to analyze the “dark” problem and the distribution of matter through two different approaches which are linked by the possibility that the solution of these astronomical puzzles should be sought in the quantum imprinting of the Universe. The first approach is based on a cosmological model formulated and developed in the last t...

In this paper we analyze the classical problem of a charge that falls in a gravitational …eld, the famous lift Einstein gedankenexperiment. The goal of this paper, is to analyze an original approach developed by Soker and Harpaz (2000) based on what we have called Larmor "whiplash". The authors consider the case of a charge freely falling in a unif...

Recently, a $4$-index generalization of Einstein theory is proposed by Moulin (Eur. Phys. J. C 77, 878 (2017)). Using this method, we find the most general $2$-index field equations derivable from the Einstein-Hilbert action. The application of Newtonian limit, the role of gravitational coupling constant and the effects of the properties of ordinar...

We profit by a recent paper of Visser claiming that Rastall gravity is equivalent to Einstein gravity to compare the two gravitational theories in a general way. Our conclusions are different from Visser's ones. We indeed argue that these two theories are not equivalent. In fact, Rastall theory of gravity is an "open" theory when compared to Einste...

We consider processes of emergence within the conceptual framework of the Information Loss principle and the concepts of (1) systems conserving information; (2) systems compressing information; and (3) systems amplifying information. We deal with the supposed incompatibility between emergence and computability tout-court. We distinguish between com...

The recent starting of the gravitational wave (GW) astronomy with the events GW150914, GW151226, GW170104, and the very recent GW170814 and GW170817 seems to be fundamental not only in order to obtain new intriguing astrophysical information from our surrounding Universe, but also in order to discriminate among Einstein's general theory of relativi...

The search for dark matter (DM) is one of the most active and challenging areas of current research. Possible DM candidates are ultralight fields such as axions and weak interacting massive particles (WIMPs). Axions piled up in the center of stars are supposed to generate matter/DM configurations with oscillating geometries at a very rapid frequenc...

Background: The Hawking–Perry–Strominger (HPS) work states a new controversial idea about the black hole (BH) information paradox , where BHs maximally entropize and encode information in their event horizon area , with no “hair” thought to reveal information outside but angular momentum, mass, and electric charge only in a unique quantum gravity...

Since 1986 a vast body of experimental evidence has been accumulated of direct observation of quantum jumps in many physical systems. We can therefore assume that quantum jumps are genuine physical phenomena. On the other hand, substantial identity of "quantum jumps" and "collapses" induced by measurements can be admitted, both being represented by...

In this short review, we discuss the approach of the commutator algebra of covariant derivative to analyze the gravitational theories, starting from the standard Einstein's general theory of relativity (GTR) and focusing on the Rastall theory. After that, we discuss the important role of the torsion in this mathematical framework. In the appendix o...

This book presents the Projective approach to de Sitter Relativity. It traces the development of renewed interest in models of the universe at constant positive curvature such as "vacuum" geometry. The De Sitter Theory of Relativity, formulated in 1917 with Willem De Sitter's solution of the Einstein equations, was used in different fields during t...

In this work we take into consideration a generalization of Gauge Theories based on the analysis of the structural characteristics of Maxwell theory, which can be considered as the prototype of such kind of theories (Maxwell-like). Such class of theories is based on few principles related to different orders of commutators between covariant derivat...

In this chapter we sketch out a historical overview of de Sitter Relativity, focusing on the projective version developed by the Italian mathematicians L. Fantappiè and G. Arcidiacono in the early 1950s. In addition, we analyze tendencies and problems connected to de Sitter Relativity in contemporary physics.

The structural facets of projective relativity are there investigated, in particular the physical meaning of hypersphere and its projection centered on an observer.

It is here introduced the Erlangen program for Physics by G. Arcidiacono, where the three relativities (Galilei, Poincaré and de Sitter) are a groupal “matryoshka”, i.e., three description levels of physical phenomena. The Arcidiacono transformations for the de Sitter group and the cosmological consequences are also introduced.

Electromagnetism is written in invariant form for the de Sitter group and analyze the role of 5-dimensional quantities.

Einstein equations are generalized for de Sitter 5-dimensional space, and their local projections (PGR), with some important cosmological considerations, are studied.

Projective relativity mechanics is here developed in its classical cases and the meaning of the physical quantities in SPR is investigated

The paradox of a free falling radiating charged particle in a gravitational field, is a well-known fascinating conceptual challenge that involves classical electrodynamics and general relativity. We discuss this paradox considering the emission of radiation as a consequence of an explicit space/time symmetry breaking involving the electric field wi...

The sophistication of recent experimental procedures has made it possible to detect experimentally the so-called Quantum Jumps (QJ), i.e. the stop and restart of the wave function as a real phenomenon. In this work, we connect this experimental evidence to a foundational interpretation of QM, based on an a-temporal vacuum. In that picture, the QJ i...

Some ideas are explored concerning the structure of elementary particles (specifically, leptons and hadrons), formulated within the context of a theory of the objective collapse of the wavefunction recently proposed by the authors. In accordance with this hypothesis, to each interaction that induces a discontinuity (quantum jump) in the evolution o...

The search for dark matter (DM) is one of the most active and challenging areas of current research. Among the several effects of DM expected to be observable in astrophysics, very rapid stellar oscillations are expected to occur when certain types of stars accrete a particular type of DM in their interiors with well-defined frequencies f that depe...

The aim of this paper is to show the possible significance, and usefulness, of various non-self-adjoint operators for suitable Observables in non-relativistic and relativistic quantum mechanics (QM), and in quantum electrodynamics. More specifically, this work deals with: (i) the Hermitian (but not self-adjoint) Time operator in non-relativistic QM...

Starting from the origin of Einstein’s general relativity (GR), the request of Mach on the theory’s structure has been the core of the foundational debate. That problem is strictly connected with the nature of the mass-energy equivalence. It is well known that this is exactly the key point that Einstein used to realize a metric theory of gravitatio...

The study of brain dynamics currently utilizes the new features of nanobiotechnology and bioengineering. New geometric and analytical approaches appear very promising in all scientific areas, particularly in the study of brain processes. Efforts to engage in deep comprehension lead to a change in the inner brain parameters, in order to mimic the ex...

Recently the authors Nguyen, Shipley, Linder, Plummer, Liu, Setru, Shaevitz, and Leifer have published research in PNAS in which they presented an instrument capable of recording intracellular calcium transients from the majority of neurons in the head of a freely behaving Caenorhabditis elegans with cellular resolution, while simultaneously record...

We consider how processes of dynamical, multiple, overlapping, interfering, correlated interactions establishing collective systems are analytically intractable. The meta-structures project has the purpose of using mesoscopic (rather than macroscopic or statistical) representations to allow interventions which can suitably modify various properties...

Einstein Bohr Debate in the Year of Light 2015: Highlights in Quantum and Relativity The International Year of Light and Light-Based Technologies (IYL 2015) is a global initiative adopted by the United Nations to raise awareness of how optical technologies promote sustainable development and provide solutions to worldwide challenges in areas such a...

Editor: Ignazio Licata Foreword G. 't Hooft Authors: B. Hiley, Maurice de Gosson, Geoffrey F. Chew, D. Dolce, George Jaroszkiewicz,Rui Vilela Mendes,R. Zapatrin,Cecilia Flori, Reiner Hedrich, P. Jarvis, J. Munkhammar, H. Kleinert,T. Elze,Manfred Requardt,Erasmo Recami,G. Chapline,M. Consoli, G. Vitiello,R. Kastner, W. M. Stuckey, L. Chiatti, S. Vac...

A ccording to the usual quantum description, the time evolution of the quantum state is continuous and deterministic except when a discon-tinuous and indeterministic collapse of state vector occurs. The collapse has been a central topic since the origin of the theory, although there are remarkable theoretical proposals to understand its nature, suc...

The present paper has mainly the aim to formulate a quantum neurological model of brain dynamics during perception and cognition of ambiguous figures here including the case of the Dalmatian dog. First of all, we summarize our previous experimental and theoretical studies, evidencing as the basic conceptual foundations of quantum mechanics enter in...

The study of brain dynamics utilizes today the new features of nano-biotechnology. Neurons are connected by synapses in an electronic way, therefore we have a charge transport in the brain. Electronic systems have voltages and currents sources and complex interconnected impedances; the particular behaviour of current generates wanted voltages trans...

A naive brain model to introduce Freeman intentional transformation by geometric approach.

Review for Contemporary Physics: “Principles of Discrete Time Mechanics” by George Jaroszkiewicz, Cambridge Monographs on Mathematical Physics, Cambridge Univ. Press, Cambridge, April 2014.365+13 pp. £85.00 (Hardback) ISBN: 9781107034297 . Level: Scientist.

A new type of duality is presented, which connects Quantum Chromo-dynamics (QCD) and de Sitter geometry with the old concept of hadronic " string " . Some applications to hadronization and the origin of Regge trajectories are discussed. The involved global-local connection is explained in term of downward formal causality. (preliminary; improved ve...

One of the most interesting problem that astronomy has given to theoretical physics is that of Dark Matter, invoked to explain the anomaly in the rotation curves of galaxies. Today, the most of astronomers think that each galaxy has a halo of Dark Matter and different theories, from particle physics to modified gravity, provide a theoretical explan...

This book addresses the latest advances in general relativity research, including the classical world and spinor formalisms; keys to understanding gravity; the continuum mechanics of space-time; new evidences on matter without energy-stress tensor; a new approach to study gravitational stability of the solutions to the Einstein equations; Mond theo...

Abstract A geometric approach to entangled qubit pairs is outlined via Bohm Theory. An entropic quantum correlation distance is here proposed as a mark of the non-local “handshaking” between two systems under the action of Quantum Potential. The Bell-CHSH inequalities and Berry Phase are analyzed in terms of this new correlation measure we called B...

Given a stress-free system as a perfect crystal with points or atoms ordered in a three dimensional lattice in the Euclidean reference space, any defect, external force or heterogeneous temperature change in the material connection that induces stress on a previously stress-free configuration changes the equilibrium configuration. A material has st...

In classical mechanics, we have individual particle and invariant density in the phase space. In quantum mechanics, any particle is sensitive in a different way from all other particles, for its position and also to the measure process. Thus, we substitute the classical probability in the phase space with the conditional probability in the network...

Starting from the origin of Einstein general relativity (GR) the request of Mach on the theory's structure has been the core of the foundational debate. That problem is strictly connected with the nature of the mass- energy equivalence. It is well known that this is exactly the key point that Einstein used to realize a metric theory of gravitation...