Results 41 to 50 of about 23,183 (245)
Effects of Backflow Correlation in the Three-Dimensional Electron Gas: Quantum Monte Carlo Study
, 1998 The correlation energy of the homogeneous three-dimensional interacting electron gas is calculated using the variational and fixed-node diffusion Monte Carlo methods, with trial functions that include backflow and three-body correlations.
A. W. Overhauser +36 more
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Backflow and dissipation during the quantum decay of a metastable Fermi liquid
, 1998 The particle current in a metastable Fermi liquid against a first-order phase transition is calculated at zero temperature. During fluctuations of a droplet of the stable phase, in accordance with the conservation law, not only does an unperturbed ...
A. O. Caldeira +15 more
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Diffusion quantum Monte Carlo calculation of the quasiparticle effective mass of the two-dimensional homogeneous electron gas [PDF]
, 2012 The quasiparticle effective mass is a key quantity in the physics of electron gases, describing the renormalization of the electron mass due to electron-electron interactions.
Drummond, N. D., Needs, R. J.
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Non-Markovian effect on quantum Otto engine: Role of system-reservoir interaction
Physical Review Research, 2021 We study a limit cycle of a quantum Otto engine whose every cycle consists of two finite-time quantum isochoric (heating or cooling) processes and two quantum adiabatic work-extracting processes. Considering a two-level system as a working substance that
Yuji Shirai +4 more
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Generation and focusing of a second-order vector beam using a subwavelength optical element
Компьютерная оптика, 2022 This article proposes a new type of subwavelength axicons for creating and focusing second-order vector cylindrical beams. It is also shown that using the proposed subwavelength axicons, it is possible to create focal spots with an energy backflow.
S.A. Degtyarev, D.A. Savelyev
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3D Simulation of Electron and Ion Transmission of GEM-based Detectors
, 2017 Time Projection Chamber (TPC) has been chosen as the main tracking system in several high-flux and high repetition rate experiments. These include on-going experiments such as ALICE and future experiments such as PANDA at FAIR and ILC. Different $\mathrm{
Bhattacharya, Purba +4 more
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, 2014 We have performed a microscopic study of a straight quantized vortex line in three dimensions in condensed $^4$He at zero temperature using the Shadow Path Integral Ground State method and the fixed-phase approximation.
Galli, Davide E. +2 more
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, 2015 We show how a ground state trial wavefunction of a Fermi liquid can be systematically improved introducing a sequence of renormalized coordinates through an iterative backflow transformation.
Holzmann, Markus +3 more
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Irreversible work and Maxwell demon in terms of quantum thermodynamic force
Scientific Reports, 2021 The second law of classical equilibrium thermodynamics, based on the positivity of entropy production, asserts that any process occurs only in a direction that some information may be lost (flow out of the system) due to the irreversibility inside the ...
B. Ahmadi, S. Salimi, A. S. Khorashad
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Dissociation energy of the water dimer from Quantum Monte Carlo calculations
, 2007 We report a study of the electronic dissociation energy of the water dimer using quantum Monte Carlo (QMC) techniques. We have performed variational quantum Monte Carlo (VMC) and diffusion quantum Monte Carlo (DMC) calculations of the electronic ground ...
Gurtubay, I. G., Needs, R. J.
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