171 citations · 978 across the 28 of their papers we have counts for
28 papers
Entanglement dynamics of coupled quantum oscillators in independent nonMarkovian baths
Jen-Tsung Hsiang, Onat Arısoy, Bei-Lok Hu
This work strives to better understand how the entanglement in an open quantum system, here represented by two coupled Brownian oscillators, is affected by a nonMarkovian environme…
NonMarkovian Abraham--Lorentz--Dirac Equation: Radiation Reaction without Pathology
Jen-Tsung Hsiang, Bei-Lok Hu
Motion of a point charge emitting radiation in an electromagnetic field obeys the Abraham-Lorenz-Dirac (ALD) equation, with the effects of radiation reaction or self-force incorpor…
Quantum Field Theory based Quantum Information: Measurements and Correlations
Charis Anastopoulos, Bei-Lok Hu, Konstantina Savvidou
This is the first in a series of papers aiming to develop a relativistic quantum information theory in terms of unequal-time correlation functions in quantum field theory. In this…
Quantum Thermodynamic Uncertainty Relations, Generalized Current Fluctuations and Nonequilibrium Fluctuation-Dissipation Inequalities
Daniel Reiche, Jen-Tsung Hsiang, Bei-Lok Hu
Thermodynamic uncertainty relations (TURs) represent one of the few broad-based and fundamental relations in our toolbox for tackling the thermodynamics of nonequilibrium systems.…
Quantum Thermodynamic Uncertainties in Nonequilibrium Systems from Robertson-Schrödinger Relations
Hang Dong, Daniel Reiche, Jen-Tsung Hsiang +1
Thermodynamic uncertainty principles make up one of the few rare anchors in the largely uncharted waters of nonequilibrium systems, the fluctuation theorems being the more familiar…
Quantum Capacity and Vacuum Compressibility of Spacetime: Thermal Fields
Hing-Tong Cho, Jen-Tsung Hsiang, Bei-Lok Hu
An important yet perplexing result from work in the 90s and 00s is the near-unity value of the ratio of fluctuations in the vacuum energy density of quantum fields to the mean in a…
Quantum Radiation and Dissipation in Relation to Classical Radiation and Radiation Reaction
Jen-Tsung Hsiang, Bei-Lok Hu
This work continues the investigation of radiation phenomena from atom-field interactions, extending our earlier study of quantum radiation from a stationary atom's internal degree…
No intrinsic decoherence of inflationary cosmological perturbations
Jen-Tsung Hsiang, Bei-Lok Hu
After a brief summary of decoherence and quantum to classical transition in cosmology we focus on the study of quantum decoherence of cosmological perturbations in inflationary uni…
The Deep Space Quantum Link: Prospective Fundamental Physics Experiments using Long-Baseline Quantum Optics
Makan Mohageg, Luca Mazzarella, Dmitry V. Strekalov +19
The National Aeronautics and Space Administration's Deep Space Quantum Link mission concept enables a unique set of science experiments by establishing robust quantum optical links…
Gravitational Decoherence in Deep Space Experiments
Charis Anastopoulos, Miles Blencowe, Bei-Lok Hu
Among the many worthwhile quantum experiments taking advantage of long baselines in space, this white paper points to the far-reaching significance of gravitational decoherence exp…
Gravitational Decoherence: A Thematic Overview
Charis Anastopoulos, Bei-Lok Hu
Gravitational decoherence (GD) refers to the effects of gravity in actuating the classical appearance of a quantum system. Because the underlying processes involve issues in genera…
Intrinsic Entropy of Squeezed Quantum Fields and Nonequilibrium Quantum Dynamics of Cosmological Perturbations
Jen-Tsung Hsiang, Bei-Lok Hu
Density contrasts in the universe are governed by scalar cosmological perturbations which, when expressed in terms of gauge-invariant variables, contain a classical component from…
Fluctuation-Dissipation Relation for a Quantum Brownian Oscillator in a Parametrically Squeezed Thermal Field
Jen-Tsung Hsiang, Bei-Lok Hu
In this paper we study the nonequilibrium evolution of a quantum Brownian oscillator, modeling the internal degree of freedom of a harmonic atom or an Unruh-DeWitt detector, couple…
Dynamical Response of an Unruh-DeWitt Detector in a Quantum Field over the History of the Universe
Jen-Tsung Hsiang, Bei-Lok Hu
In this work we ask how an Unruh-DeWitt (UD) detector with harmonic oscillator internal degrees of freedom measuring an evolving quantum matter field in an expan…
Quantum Parametric Oscillator Heat Engines in Squeezed Thermal Baths: Foundational Theoretical Issues
Onat Arısoy, Jen-Tsung Hsiang, Bei-Lok Hu
In this paper we examine some foundational issues of a class of quantum engines where the system consists of a single quantum parametric oscillator, operating in an Otto cycle cons…
Equivalence Principle for Quantum Systems: Dephasing and Phase Shift of Free-Falling Particles
Charis Anastopoulos, Bei-Lok Hu
We ask the question how the (weak) equivalence principle established in classical gravitational physics should be reformulated and interpreted for massive quantum objects that may…
Probing a Gravitational Cat State
Charis Anastopoulos, Bei-Lok Hu
We investigate the nature of a gravitational two-state system (G2S) in the simplest setup in Newtonian gravity. In a quantum description of matter a single motionless massive parti…
Emergence: Key physical issues for deeper philosophical inquiries
Bei-Lok Hu
A sketch of three senses of emergence and a suggestive view on the emergence of time and the direction of time is presented. After trying to identify which issues philosophers inte…
Autangle: A case of Quantum Narcissism?
Rong Zhou, Ryan Orson Behunin, Shih-Yuin Lin +1
In this paper we ask a common psychological question and provide a physics answer: "Looking into a mirror can one get entangled with one's image?" This is not a frivolous question;…
Nonequilibrium Atom-Dielectric Forces Mediated by a Quantum Field
Ryan Orson Behunin, Bei-Lok Hu
In this paper we give a first principles microphysics derivation of the nonequilibrium forces between an atom, treated as a three dimensional harmonic oscillator, and a bulk dielec…
Nonequilibrium Forces Between Neutral Atoms Mediated by a Quantum Field
Ryan Orson Behunin, Bei-Lok Hu
We study all known and as yet unknown forces between two neutral atoms, modeled as three dimensional harmonic oscillators, arising from mutual influences mediated by an electromagn…
Non-Markovian Entanglement Dynamics of Two Qubits Interacting with a Common Electromagnetic Field
C. Anastopoulos, S. Shresta, B. L. Hu
We study the non-equilibrium dynamics of a pair of qubits made of two-level atoms separated in space with distance and interacting with one common electromagnetic field but not…
Stochastic Gravity: Theory and Applications
B. L. Hu, E. Verdaguer
Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic…
Bose - Einstein Condensate Superfluid-Mott Insulator Transition in an Optical Lattice
Esteban Calzetta, Bei-Lok Hu, Ana Maria Rey
We present in this paper an analytical model for a cold bosonic gas on an optical lattice (with densities of the order of 1 particle per site) targeting the critical regime of the…