Browsing Scholarly Works, Department of Physics by Title
Now showing items 502-521 of 811
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Pair contact process with diffusion: Failure of master equation field theory
(American Physical Society, 2004-11)We demonstrate that the "microscopic" field theory representation, directly derived from the corresponding master equation, fails to adequately capture the continuous nonequilibrium phase transition of the pair contact ... -
Pair contact process with diffusion: Failure of master equation field theory
(Amer Physical Soc, 2004-11-01) -
Parallel temperature interfaces in the Katz-Lebowitz-Spohn driven lattice gas
(2020-11-27)We explore a variant of the Katz–Lebowitz–Spohn (KLS) driven lattice gas in two dimensions, where the lattice is split into two regions that are coupled to heat baths with distinct temperatures. The geometry was arranged ... -
Parallel Temperature Interfaces in the Katz-Lebowitz-Spohn Driven Lattice Gas
We explore a variant of the Katz-Lebowitz-Spohn (KLS) driven lattice gas in two dimensions, where the lattice is split into two regions that are coupled to heat baths with distinct temperatures. The temperature boundaries ... -
Path-integral approach to the Hubbard model
(American Physical Society, 1991-02)A path-integral approach to the Hubbard model is developed for the whole range of the coupling strength U. At half filling, the strong-coupling results are readily reproduced within the simple Gaussian fluctuations. The ... -
Pattern recognition with wavelength-multiplexed filters
(Optical Society of America, 1979-08)Wavelength-multiplexed matched spatial filters are used in an incoherent optical pattern recognition system. The system produces color-coded correlation responses which allow the simultaneous recognition of several objects ... -
Percolation-enhanced supersolids in the extended Bose-Hubbard model
(American Physical Society, 2012-01-04)We theoretically study the stability of lattice supersolid states in the extended Bose-Hubbard model with bounded spatial disorder. We construct a disorder mean-field theory and compare with quantum Monte Carlo calculations. ... -
Percolation-enhanced supersolids in the extended Bose-Hubbard model
(Amer Physical Soc, 2012-01-04)We theoretically study the stability of lattice supersolid states in the extended Bose-Hubbard model with bounded spatial disorder. We construct a disorder mean field theory and compare with quantum Monte Carlo calculations. ... -
Performance of the Los Alamos National Laboratory spallation-driven solid-deuterium ultra-cold neutron source
(AIP Publishing, 2013-01)In this paper, we describe the performance of the Los Alamos spallation-driven solid-deuterium ultra-cold neutron (UCN) source. Measurements of the cold neutron flux, the very low energy neutron production rate, and the ... -
Perspectives on clinical informatics: integrating large-scale clinical, genomic, and health information for clinical care.
(2013-12)The advances in electronic medical records (EMRs) and bioinformatics (BI) represent two significant trends in healthcare. The widespread adoption of EMR systems and the completion of the Human Genome Project developed the ... -
Perturbative Field-Theoretical Renormalization Group Approach to Driven-Dissipative Bose-Einstein Criticality
(Amer Physical Soc, 2014-04-16) -
Phase Diagram of the nu=5/2 Fractional Quantum Hall Effect: Effects of Landau-Level Mixing and Nonzero Width
(Amer Physical Soc, 2015-04-02) -
Phase Transitions and Scaling in Systems Far From Equilibrium
Scaling ideas and renormalization group approaches proved crucial for a deep understanding and classification of critical phenomena in thermal equilibrium. Over the past decades, these powerful conceptual and mathematical ... -
Phase transitions and spatio-temporal fluctuations in stochastic lattice Lotka-Volterra models
(Springer, 2007-07-01) -
Phase transitions: renormalization and scaling
(Vch Publ., 1995) -
Phenomenology of aging in the Kardar-Parisi-Zhang equation
(American Physical Society, 2012-03-27)We study aging during surface growth processes described by the one-dimensional Kardar-Parisi-Zhang equation. Starting from a flat initial state, the systems undergo simple aging in both correlators and linear responses, ... -
Phenomenology of Not-so-heavy Neutral Leptons: The NuTeV Anomaly, Lepton Universality, and Non-Universal Neutrino-Gauge Couplings
Talk presented by Takeuchi at the YITP workshop "Progress in Particle Physics" 2004. -
Photogeneration action spectroscopy of neutral and charged excitations in films of a ladder-type poly(para-phenylene)
(American Physical Society, 1999-04-19)The photogeneration quantum efficiency action spectra of long-lived neutral and charged excitations in films of a ladder-type poly(para-phenylene) were measured. We found that both tripler and polaron action spectra show, ... -
Photogeneration and recombination processes of neutral and charged excitations in films of a ladder-type poly(para-phenylene)
(American Physical Society, 1999-08-15)We introduce a version of the cw photomodulation technique, measured far from the steady state, for obtaining the quantum efficiency, eta, of long-lived photoexcitations in pi-conjugated polymers. We apply this technique ... -
Photoinduced spin-polarized current in InSb-based structures
(American Institute of Physics, 2009-11-15)We demonstrate the observation of spin-polarized photocurrent in InSb films grown on GaAs and InP substrates and InSb quantum wells where a nonequilibrium spin population has been achieved by using circularly polarized ...
