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Publications Influence

The rotating-wave approximation: consistency and applicability from an open quantum system analysis

- C. Fleming, N. Cummings, +10 authors Maryland Center for Fundamental Physics
- Mathematics, Physics
- 8 March 2010

We provide an in-depth and thorough treatment of the validity of the rotating-wave approximation (RWA) in an open quantum system. We find that when it is introduced after tracing out the environment… Expand

41 4- PDF

Probing a Gravitational Cat State

- C. Anastopoulos, B. Hu
- Physics
- 13 April 2015

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 particle can in… Expand

41 3- PDF

Equivalence Principle for Quantum Systems: Dephasing and Phase Shift of Free-Falling Particles

- C. Anastopoulos, B. Hu
- Physics, Mathematics
- 14 July 2017

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 also have internal… Expand

16 3- PDF

A Master Equation for Gravitational Decoherence: Probing the Textures of Spacetime

- C. Anastopoulos, B. Hu
- Physics
- 22 May 2013

We give a first principles derivation of a master equation for the evolution of a quantum matter field in a linearly perturbed Minkowski spacetime, based solely on quantum field theory and general… Expand

57 3- PDF

Quantum Mechanical Histories and the Berry Phase

- C. Anastopoulos, N. Savvidou
- Physics
- 25 July 2000

We elaborate on the distinction between geometric and dynamical phase in quantum theory and we show that the former is intrinsically linked to the quantum mechanical probabilistic structure. In… Expand

17 3- PDF

Two-Level Atom-Field Interaction: Exact Master Equations for Non-Markovian Dynamics, Decoherence and Relaxation

- C. Anastopoulos, B. Hu
- Physics
- 30 January 1999

We perform a first- principles derivation of the general master equation to study the non-Markovian dynamics of a two-level atom (2LA) interacting with an electromagnetic field (EMF). We use the… Expand

64 2- PDF

Continuous-time histories: Observables, probabilities, phase space structure and the classical limit

- C. Anastopoulos
- Mathematics, Physics
- 10 August 2000

The continuous-time histories program stems from the consistent histories approach to quantum theory and aims to provide a fully covariant formalism for quantum mechanics. In this paper we examine… Expand

26 2- PDF

Probing a Gravitational Cat State: Experimental Possibilities

- M. Derakhshani, C. Anastopoulos, B. Hu
- Physics
- 13 March 2016

This is a progress report on a preliminary feasibility study of experimental setups for preparing and probing a gravitational cat state [1].

22 1- PDF

Problems with the Newton-Schrödinger equations

- C. Anastopoulos, B. Hu
- Physics
- 19 March 2014

We examine the origin of the Newton–Schrodinger equations (NSEs) that play an important role in alternative quantum theories (AQT), macroscopic quantum mechanics and gravity-induced decoherence. We… Expand

53 1- PDF

Frequently Asked Questions About Decoherence

- C. Anastopoulos
- Physics, Computer Science
- 30 November 2000

TLDR

21 1- PDF

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