Allan Widom's research while affiliated with Northeastern University and other places

Publications (45)

Article
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All therapeutic methods dealing with coronavirus (past and present) are based on chemicals. We test for it (positive or negative) chemically and hope to cure it with a future vaccine (some complicated chemical preparation). If and when the virus mutates, another set of chemical protocols for its testing and a hunt for new chemicals as a vaccine sha...
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We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic f...
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The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The respons...
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This paper briefly reviews the current status of Standard Model (weak and strong nuclear) interactions induced in condensed matter systems via the excitation of collective degrees of freedom to provide the necessary energies. The central point is that a variety of low energy systems can accelerate electrons to several MeV, making it possible to pro...
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Mesoscopic polarized negatively charged ordered water layers coating a metallic cathode can serve as a battery. On top of the water layers resides a normal phase of water and the electromotive force resides across the exclusion zone ordered water layers. Radiation incident on the ordered water layers provides the energy source which allows the batt...
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Neutrinos in the cosmic ray flux with energies near 1 EeV and above are detectable with the Surface Detector array of the Pierre Auger Observatory. We report here on searches through Auger data from 1 January 2004 until 20 June 2013. No neutrino candidates were found, yielding a limit to the diffuse flux of ultra-high energy neutrinos that challeng...
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We discuss materials which owe their stability to external fields. These include: 1) external electric or magnetic fields, and 2) quantum vacuum fluctuations in these fields induced by suitable boundary conditions (the Casimir effect). Instances of the first case include the floating water bridge and ferrofluids in magnetic fields. An example of th...
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We describe a new method of identifying night-time clouds over the Pierre Auger Observatory using infrared data from the Imager instruments on the GOES-12 and GOES-13 satellites. We compare cloud identifications resulting from our method to those obtained by the Central Laser Facility of the Auger Observatory. Using our new method we can now develo...
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Contributions of the Pierre Auger Collaboration to the 33rd International Cosmic Ray Conference, Rio de Janeiro, Brazil, July 2013
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The Pierre Auger Observatory in Malarg¨ue, Argentina, is designed to study the properties of ultra-high energy cosmic rays with energies above 1018 eV. It is a hybrid facility that employs a Fluorescence Detector to perform nearly calorimetric measurements of Extensive Air Shower energies. To obtain reliable calorimetric information from the FD, th...
Article
Bacteria, very old on an evolutionary scale, can live within agricultural soils wiredtogether into communities. The information content transferred through the wires is not yetentirely clear. It has recently been discovered that, younger on the evolutionary scale, E. colibacteria can live in communities with wireless communication systems. E. coli...
Article
In this paper we shall rst describe low energy nuclear transmutation theory [LENT]and then apply it to describe how a \smart" material such as a piezoelectric rock when crushedcan induce nuclear reactions with production of neutrons which have been observed. An experimentalprogram being set up at Perugia for realizing LENT is also briey noted.
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To interpret the mean depth of cosmic ray air shower maximum and its dispersion, we parametrize those two observables as functions of the �rst two moments of the lnA distribution. We examine the goodness of this simple method through simulations of test mass distributions. The application of the parameterization to Pierre Auger Observatory data all...
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The observation of ultrahigh energy (UHE) neutrinos has become a priority in experimental astroparticle physics. UHE neutrinos can be detected with a variety of techniques. In particular, neutrinos can interact in the atmosphere (downward-going neutrinos) or in the Earth crust (Earth-skimming neutrinos), producing air showers that can be observed w...
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We derive lower bounds on the density of sources of ultra-high energy cosmic rays from the lack of significant clustering in the arrival directions of the highest energy events detected at the Pierre Auger Observatory. The density of uniformly distributed sources of equal intrinsic intensity was found to be larger than ∼ (0.06 − 5) × 10 −4 Mpc −3 a...
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A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10(18) eV at the Pierre Auger Observatory is reported. For the first time, these large-scale anisotropy searches are performed as a function of both the right ascension and the declination and expressed in terms of dipole and quadr...
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A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10(18) eV at the Pierre Auger Observatory is presented. This search is performed as a function of both declination and right ascension in several energy ranges above 10(18) eV, and reported in terms of dipolar and quadrupolar coeff...
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We describe the experimental setup and the results of RAuger, a small radio-antenna array, consisting of three fully autonomous and self-triggered radio-detection stations, installed close to the center of the Surface Detector (SD) of the Pierre Auger Observatory in Argentina. The setup has been designed for the detection of the electric field stre...
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In the conceptual framework of Quantum ElectroDynamics (QED) it has been proven that liquid water is made up of two phases : 1) a coherent phase where the electron cloud of water molecules oscillates in phase with a trapped electromagnetic field within extended regions, called Coherence Domains (CD); 2) a non coherent phase formed by a gas-like ens...
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A substantial neutron flux generated by plasma excitation at the tungsten cathode of an electrolytic cell with alkaline solution is reported. A method based on a CR-39 nuclear track detector coupled to a boron converter was used to detect the neutrons. This method is insensitive to the strong plasma-generated electromagnetic noise that made inconcl...
Article
Experiments have been performed to measure magnetoelectric properties of room temperature spirally ordered Sr3Co2Fe24O41 hexaferrite slabs. The measured properties include the magnetic permeability, the magnetization and the strain all as a function of the electric field E and the magnetic intensity H. The material hexaferrite Sr3Co2Fe24O41 exhibit...
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Benveniste had observed that highly dilute (and even in the absence of physical molecules) biological agents still triggered relevant biological systems. Some of these experiments were reproduced in three other laboratories who cosigned the article, (Davenas et al., Nature 1988, 333, 816). Further works, [(Medical Hypotheses 2000, 54, 33), (Rivista...
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TiO2−δ films were deposited on (100) lanthanum aluminate, LaAlO3, substrates at a low oxygen chamber pressure, P≈0.3 mTorr, employing a pulsed laser ablation deposition technique. In previous work, it was established that the oxygen deficiency in these films induced ferromagnetism. In this work it is demonstrated that this same oxygen deficiency al...
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Alternating layers of granular Iron (Fe) and Titanium dioxide (TiO$_{2-\delta}$) were deposited on (100) Lanthanum aluminate (LaAlO$_3$) substrates in low oxygen chamber pressure using a controlled pulsed laser ablation deposition technique. The total thickness of the film was about 200 nm. The films show ferromagnetic behavior for temperatures ran...
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Relativistic high energy heavy ion collision cross sections have been interpreted in terms of almost ideal liquid droplets of nuclear matter. The experimental low viscosity of these nuclear fluids have been of considerable recent quantum chromodynamic interest. The viscosity is here discussed in terms of the string fragmentation models wherein the...
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Turbulence has been called the last great unsolved problem of classical physics. The difficulty of solving the turbulence problem classically (even with the help of recent large scale computer simulations) may be that the problem is not classical. Turbulence will here be described as due to the non-commuting nature of the components of the Landau q...
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Using data from the Sydney University Giant Air-Shower Recorder and the Akeno Giant Air-Shower Array experiments taken during a 10 yr period with nearly uniform exposure to the entire sky, we search for large-scale anisotropy patterns in the arrival directions of cosmic rays with energies >1019.6eV. We determine the angular power spectrum from an e...
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We present the circuit equivalent of the Landau-Khalatnikov dynamical ferroelectric model. The differential equation for hysteretic behavior is subject to numerical computer simulations. The size and shape of the simulated hysteretic loops depend strongly on the frequency and the amplitude of the driving electric field. In previous experiments, thi...
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Using data from the SUGAR and the AGASA experiments taken during a 10 yr period with nearly uniform exposure to the entire sky, we search for large-scale anisotropy patterns in the arrival directions of cosmic rays with energies > 10^{19.6} eV. We determine the angular power spectrum from an expansion in spherical harmonics for modes out to \ell=5....
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The soft condensed matter of biological organisms exhibits atomic motions whose properties depend strongly on temperature and hydration conditions. Due to the superposition of rapidly fluctuating alternative motions at both very low temperatures (quantum effects) and very high temperatures (classical Brownian motion regime), the dimension of an ato...
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We analyze the nonstationary vibrational states prepared by ultrashort laser pulses interacting with a two electronic level molecular system. Fully quantum mechanical expressions are derived for all the moments of the coordinate and momentum operators for the vibrational density matrices associated with the ground and excited electronic states. The...
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We present an effective linear response approach to pump-probe femtosecond coherence spectroscopy in the well separated pulse limit. The treatment presented here is based on a displaced and squeezed state representation for the non-stationary states induced by an ultrashort pump laser pulse or a chemical reaction. The subsequent response of the sys...
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We discuss the observation of coherent nuclear oscillations in chemical and biological systems subsequent to excitation with an ultrashort laser pulse. The experimentally observed coherent signals arising from rapid, photon initiated, chemical reactions are considered separately from vibrational coherences directly excited by the (electric) field i...
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We present a full quantum mechanical treatment, using the quantum fluctuation–dissipation theorem, which is useful in describing the absorption line shape of a system composed of damped vibrational (harmonic) oscillators that are linearly coupled to an electronic excitation. The closed form expressions obtained from the model predict optical line s...
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We present a calculation of the two-graviton exchange contribution to the law of force between a test mass and a fluctuating mass distribution in the limit of large distances. We find an interaction potential which varies with the distance as R-7. The effect is suppressed by the square of the Planck length LambdaP, so that this gravitational Casimi...
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The theory of forces due to quantum electrodynamic field fluctuations are of great consequence in condensed-matter physics and chemistry, and are routinely applied to polarizable media to explain long-ranged van der Waals forces. Less well studied are the Casimir forces on particles with a net charge. Some examples of the charged-particle case are...
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We present a novel approach to calculating pump-probe signals, that is based on a moment analysis of the pump-induced vibrational coherences in the ground and excited states of a molecular system. The amplitude and phase of vibrational modes detected in open band pump-probe signals can reveal important information concerning the underlying mechanis...

Citations

... The role played in structured interfacial water CD/EZ by sonic signals (phonons) and non-ionizing EM radiation (photons) 2 emitted and absorbed by biological systems, which do not cause thermal or heating effects but do cause non-thermal biological effects on electron and proton transfer reactions, en-zymes, DNA and fluxes in the ion channels of excitable membranes, is currently ignored or neglected. Likely, among the biophysical modalities involved in the pathogenicity of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) and in addition to the classical electrostatic modality, other modalities based sonic signaling and on ULF-EMF signaling [17] should be taken into account. The present work points at introducing the possible ULF-EMF interactions. ...
... We detail here the steps to reconstruct the polarisation from the time traces presented in the previous sec- tion. The analysis presented in this Section and in Section 5 follows mainly what was done by the Auger collaboration in [27], but is presented here with our own set of simulations for self-consistency. We use a standard method based on the Stokes parameters as detailed in Ref. [22,28], and work in the shower plane (e v×B , e v×(v×B) ), the relevant framework to study polarisation. ...
... We first filter the data to remove both known frequencies of anthropogenic noise with static notch filters (at 27, 88.5, 107, 118, and 126 MHz in both polarizations, and additionally from 52.5 to 60.25 MHz in HPol channels, which removes RFI associated with the TV band). We use a method called sine subtraction filtering [66], where we filter the signals by fitting sine waves in the time domain with floating phase and amplitude, and remove any frequencies with amplitude above a threshold set in the analysis. This method preserves causality in the data. ...
... More recently, Gerald Pollack and his team in Washington University came up with an idea to build a water battery model. [5] Allan Widom et al. also came up with a theory of waterbattery system [6]. ...
... Several analyses considered the possibility that the steeply upcoming anomalies are due to a possible Earth-skimming tau neutrino origin and find that that they are in strong tension with predictions from Standard Model cross sections and experimental limits at UHE (including the in-ice neutrino channel within the ANITA) [294,[296][297][298][299][300]. This is true for both the diffuse [298,299] and point-source neutrino hypotheses [299,301]. ...
... Quite independently, there have been studies of nuclear transmutations triggered by smart materials (such as, piezoelectrics, ferro-magnetics) under severe stress [3][4][5][6][7][8] , and of pyro-electrics undergoing changes in temperature [9,10] . The underlying electro-strong (ES) theory describing phenomena for materials under stress is based on the well known giant dipole resonances (GDR) that is briefly described in Sec. ...
... On the other hand, there are also quantum mechanical-free electron motion along the effective perimeter of the material. The quantum mechanical electromagnetic (EM) transition frequencies are given by (Swain et al. 2013; ν n;qm ðLÞ ¼ ð π� h mL 2 Þð2n þ 1Þ; n ¼ 0; 1; 2; 3; . . . :; ν 1 : ν 2 : ν 3 . . . ...
... The increase in luminosity can lead to enhanced cosmic-ray acceleration, with subsequent particle interactions and production of secondary multi-messenger emissions. Moreover, anisotropy, source-density, energetic and magnetic-structure arguments strongly challenge steady-source scenarios for UHE cosmic rays with light composition [448][449][450]. A bright transient source observed in UHE neutrinos with solid electromagnetic counterparts would enable an immediate identification of the source with clear evidence of 61 UHECR acceleration [451]. ...
... To exclude events where the recorded profile may be distorted due to clouds over the Observatory, only events from known cloud-free periods are accepted. Events where no information on the cloud coverage is available from either the Lidar system installed at the FD site Coihueco (BenZvi et al. 2007) or infrared data from the GOES-12 satellite (Abreu et al. 2013) are excluded. ...
... An example of the power of air-shower data to perform data-driven tests of the consistency of hadronic interactions and the inferred cosmic-ray composition is the analysis of the first two moments of the distribution of shower maximum [751,188] with which it could be shown that the X max values predicted by air-shower simulations with the hadronic interaction model QGSJet-II.04 [286] are incompatible with the data. ...