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We explore correlations harvesting by two static detectors locally interacting with vacuum massless scalar fields in the presence of an infinite perfectly reflecting boundary. We study the phenomena of mutual information harvesting and…

Quantum Physics · Physics 2023-11-28 Zhihong Liu , Jialin Zhang , Hongwei Yu

Entanglement harvesting from the quantum field is a well-known fact that, in recent times, is being rigorously investigated further in flat and different curved backgrounds. The usually understood formulation studies the possibility of two…

General Relativity and Quantum Cosmology · Physics 2022-08-17 Dipankar Barman , Subhajit Barman , Bibhas Ranjan Majhi

We study, in the framework of the entanglement harvesting protocol, the entanglement harvesting of both a pair of inertial and uniformly accelerated detectors locally interacting with vacuum massless scalar fields subjected to a perfectly…

Quantum Physics · Physics 2021-09-01 Zhihong Liu , Jialin Zhang , Hongwei Yu

We show, under a very general set of assumptions, that pairs of identical particle detectors in spacelike separation, such as atomic probes, can only harvest entanglement from the vacuum state of a quantum field when they have a non-zero…

Quantum Physics · Physics 2017-06-01 Alejandro Pozas-Kerstjens , Jorma Louko , Eduardo Martin-Martinez

We study entanglement harvested from a quantum field through local interaction with Unruh-DeWitt detectors undergoing linear acceleration. The interactions allow entanglement to be swapped locally from the field to the detectors. We find an…

Quantum Physics · Physics 2017-10-19 Grant Salton , Robert B. Mann , Nicolas C. Menicucci

We investigate the protocol of entanglement harvesting, where two spacelike separated particle detectors extract quantum correlations from a quantum field. Specifically, we analyze the role of the mass of the field and the energy gap of the…

Quantum Physics · Physics 2022-08-26 Héctor Maeso-García , T. Rick Perche , Eduardo Martín-Martínez

So far, entanglement harvesting has been extensively studied in free space setups. Here, we provide a detailed analytical and numerical analysis of entanglement harvesting in cavities. Specifically, we adiabatically couple the quantized…

Quantum Physics · Physics 2026-01-26 Jannik Ströhle , Nikolija Momcilovic

We examine in $(2+1)$-dimensional anti-de Sitter (AdS) space the phenomena of entanglement harvesting - the process in which a pair of detectors (two-level atoms) extract entanglement from a quantum field through local interactions with the…

We explore whether acceleration assists entanglement harvesting for a pair of uniformly accelerated detectors in three different acceleration scenarios, i.e., parallel, anti-parallel and mutually perpendicular acceleration, both in the…

Quantum Physics · Physics 2022-04-22 Zhihong Liu , Jialin Zhang , Robert B. Mann , Hongwei Yu

We analyze the harvesting of entanglement and classical correlations from the quantum vacuum to particle detectors. We assess the impact on the detectors' harvesting ability of the spacetime dimensionality, the suddenness of the detectors'…

Quantum Physics · Physics 2021-11-22 Alejandro Pozas-Kerstjens , Eduardo Martin-Martinez

Motivated by the prospect of experimental implementations of entanglement harvesting in superconducting circuits, we propose a model of variable-gap particle detector that aims to bridge some of the gaps between Unruh-DeWitt (UDW) models…

Quantum Physics · Physics 2025-05-06 Adam Teixidó-Bonfill , Xi Dai , Adrian Lupascu , Eduardo Martín-Martínez

We study how two fully-featured hydrogenlike atoms harvest entanglement from the electromagnetic field vacuum, even when the atoms are spacelike separated. We compare the electromagnetic case ---qualitatively and quantitatively--- with…

Quantum Physics · Physics 2017-05-15 Alejandro Pozas-Kerstjens , Eduardo Martin-Martinez

We make a detailed comparison between entanglement harvesting for uniformly accelerated detectors in vacuum and static ones in a thermal bath at the Unruh temperature and find that, for a small energy gap relative to the Heisenberg energy…

Quantum Physics · Physics 2023-02-27 Zhihong Liu , Jialin Zhang , Hongwei Yu

The aim of this work is to study the entanglement harvesting between two graphene layers inside a planar microcavity. Applying time-dependent perturbation theory it is shown that nonclassical correlations between electrons in different…

Strongly Correlated Electrons · Physics 2018-08-20 Juan Sebastian Ardenghi

We investigate the entanglement harvesting phenomenon for static detectors that locally interact with massless scalar fields in the cosmic string spacetime, which, though locally flat, features a conical structure defined by a deficit…

Quantum Physics · Physics 2024-09-04 Ying Ji , Jialin Zhang , Hongwei Yu

We study the properties of the transition probability for a circularly accelerated detector that interacts with the massless scalar fields in the presence of a reflecting boundary. As the trajectory radius increases, the transition…

Quantum Physics · Physics 2025-03-28 Runhu Li , Zixu Zhao

We study the properties of the transition probability and entanglement harvesting phenomenon for circularly accelerated detectors locally interacting with massless scalar fields. The dependence of the transition probability on the…

Quantum Physics · Physics 2020-09-30 Jialin Zhang , Hongwei Yu

One consequence of the cosmic censorship conjecture is that any topological structure will ultimately collapse to within the horizons of a set of black holes, and as a result, an external classical observer will be unable to probe it.…

Quantum Physics · Physics 2024-06-19 Laura J. Henderson , Su Yu Ding , Robert B. Mann

We study the extraction of quantum coherence by three static Unruh-DeWitt (UDW) detectors that interact locally with a massless scalar vacuum field in the vicinity of an infinite perfectly reflecting boundary. Depending on the setup, the…

Quantum Physics · Physics 2026-01-30 Shu-Min Wu , Xiao-Ying Jiang , Xiang-Yue Yu , Zhihong Liu , Xiao-Li Huang

We revisit the entanglement harvesting protocol when two detectors are in causal contact. We study the role of field-mediated communication in generating entanglement between the two detectors interacting with a quantum field. We provide a…

Quantum Physics · Physics 2023-06-01 Erickson Tjoa , Eduardo Martín-Martínez
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