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We study the dynamics of quantum matter interacting with time-energy entangled photons. We consider the stimulation of a collective mode of a two-dimensional material by means of one of the two partners of a time-energy entangled pair of…

介观与纳米尺度物理 · 物理学 2026-01-15 Giovanni Citeroni , Marco Polini , Michael Dapolito , D. N. Basov , Giacomo Mazza

A computational model study for complete frequency redistribution linear incoherent two-level atomic radiation trapping in optically dense media using the multiple scattering representation is presented. This model study discuss at length…

The entanglement of different classes of initially entangled qubit pair is investigated in the presence of short laser pulses of rectangular and exponential shapes with either one or both qubits are excited. For the rectangular pulse, the…

量子物理 · 物理学 2014-03-04 N. Metwally , H. A. Batarfi , S. S. Hassan

We study the states of one and two atoms in a rotating ring lattice in a Hubbard type tight-binding model. The model is developed carefully from basic principles in order to properly identify the physical observables. The one-particle…

量子物理 · 物理学 2015-06-04 Juha Javanainen , Otim Odong , Jerome C. Sanders

An antiferromagnetically exchange-coupled dimer of single molecule magnets which possesses a large spin tunneling has been investigated. For this system the ground and first excited states are entangled states and the Hamiltonian is…

介观与纳米尺度物理 · 物理学 2014-04-18 S. A. Owerre

It is predicted by Schrodinger's equation that entanglement will occur in the interaction between detector and particle. We provide an analysis of the entanglement using the Gurvitz model of double-dot and detector. New results on entangled…

量子物理 · 物理学 2007-05-23 Michael Steiner , R. W. Rendell

We examine an Unruh-DeWitt particle detector coupled to a scalar field in three-dimensional curved spacetime. We first obtain a regulator-free expression for the transition probability in an arbitrary Hadamard state, working within…

广义相对论与量子宇宙学 · 物理学 2012-10-09 Lee Hodgkinson , Jorma Louko

We explore the entanglement dynamics of two detectors undergoing uniform acceleration and circular motion within a massive scalar field, while also investigating the influence of the anti-Unruh effect on entanglement harvesting. Contrary to…

高能物理 - 理论 · 物理学 2024-11-06 Yongjie Pan , Jiatong Yan , Sansheng Yang , Baocheng Zhang

We calculate the effect of polarization-dependent scattering by disorder on the degree of polarization-entanglement of two beams of radiation. Multi-mode detection converts an initially pure state into a mixed state with respect to the…

量子物理 · 物理学 2007-05-23 J. L. van Velsen , C. W. J. Beenakker

We explore some basic entanglement features of multiqubit systems that are relevant for the development of algorithms for searching highly entangled states. In particular, we compare the behaviours of multiqubit entanglement measures based…

量子物理 · 物理学 2009-01-26 A. Borras , M. Casas , A. R. Plastino , A. Plastino

The pairwise entanglement of an arbitrary atomic pair randomly extracted from a laser-driven dense multiqubit sample in the presence of quantum dissipation due to spontaneous emission is considered. The dipole-dipole interaction between the…

量子物理 · 物理学 2015-05-14 M. Macovei , J. Evers , C. H. Keitel

We investigate the transition rates of uniformly accelerated two-level single and entangled atomic systems in empty space as well as inside a cavity. We take into account the interaction between the systems and a massless scalar field from…

量子物理 · 物理学 2023-10-26 Arnab Mukherjee , Sunandan Gangopadhyay , A. S. Majumdar

We derive a general expression that quantifies the total entanglement production rate in continuous variable systems, where a source emits two entangled Gaussian beams with arbitrary correlators.This expression is especially useful for…

量子物理 · 物理学 2016-08-03 Zhi Jiao Deng , Steven J. M. Habraken , Florian Marquardt

The dynamics of a system composed by two pairs of dipolarly coupled two-level atoms is exactly studied. We show that the initial entanglement stored in a couple of atoms not directly interacting is fully transferred to the other pair in a…

量子物理 · 物理学 2012-06-06 Riccardo Messina , Anna Napoli , Antonino Messina

Nascent quantum computers motivate the exploration of quantum many-body systems in nontraditional scenarios. For example, it has become natural to explore the dynamics of systems evolving under both unitary evolution and measurement. Such…

统计力学 · 物理学 2024-03-15 Nicholas O'Dea , Alan Morningstar , Sarang Gopalakrishnan , Vedika Khemani

We discuss the generation of entangled states of two two-level atoms inside an optical resonator. When the cavity decay is continuously monitored, the absence of photon-counts is associated with the presence of an atomic entangled state. In…

量子物理 · 物理学 2009-10-31 M. B. Plenio , S. F. Huelga , A. Beige , P. L. Knight

This paper presents simulations of the state vector dynamics for a pair of atomic samples which are being probed by phase shift measurements on an optical beam passing through both samples. We show how measurements, which are sensitive to…

量子物理 · 物理学 2016-09-08 Antonio Di Lisi , Klaus Moelmer

In the present paper an example of entanglement between two different kinds of interacting particles, photons and electrons is analysed. The initial-value problem of the Schroedinger equation is solved non-perturbatively for the system of a…

量子物理 · 物理学 2010-10-05 Sandor Varro

We study the relationship between entanglement and parametric resonance in a system of two coupled time-dependent oscillators. As a measure of bipartite entanglement, we calculate the linear entropy for the reduced density operator, from…

量子物理 · 物理学 2011-08-19 V. M. Bastidas , J. H. Reina , C. Emary , T. Brandes

The generation rate of entangled photons emitted from cascaded few-level systems is intrinsically limited by the lifetime of the radiative transitions. Here, we overcome this limit for entangled photon pairs from quantum dots via a novel…