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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

It has been shown that the vacuum state of a free quantum field is entangled and such vacuum entanglement can be harvested by a pair of initially uncorrelated detectors interacting locally with the vacuum field for a finite time. In this…

Quantum Physics · Physics 2022-06-01 Hui Hu , Jialin Zhang , Hongwei Yu

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 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 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

We investigate the harvesting of quantum steering and its asymmetry between two static detectors locally interacting with a vacuum massless scalar field near an infinite, perfectly reflecting boundary. The detectors are arranged either…

Quantum Physics · Physics 2025-09-04 Xiao-Li Huang , Xiao-Ying Jiang , Yu-Xuan Wang , Si-Yu Liu , Zejun Wang , Shu-Min Wu

Quantum entanglement harvesting in the relativistic setup attracted a lot of attention in recent times. Acquiring more entanglement within two qubits may be very desirable to establish fruitful communication between them. On the other hand…

General Relativity and Quantum Cosmology · Physics 2023-10-17 Dipankar Barman , Bibhas Ranjan Majhi

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 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

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 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 mutual information harvesting of two circularly accelerated detectors that interact with the massless scalar fields near a reflecting boundary. We consider that the two detectors share a common rotational axis with the…

Quantum Physics · Physics 2026-04-15 Mingkun Quan , Runhu Li , Zixu Zhao

In this paper, we explore correlation harvesting in quantum superposition, specifically focusing on the entanglement and mutual information extracted by two Unruh-DeWitt detectors interacting with a quantum field in a mass-superposed BTZ…

General Relativity and Quantum Cosmology · Physics 2026-02-10 Yu Tang , Wentao Liu , Zhilong Liu , Jieci Wang

We reveal that the information exchange between particle detectors and their ability to harvest correlations from a quantum field can interfere constructively and destructively. This allows for scenarios where the presence of entanglement…

Quantum Physics · Physics 2024-10-02 Matheus H. Zambianco , Adam Teixidó-Bonfill , Eduardo Martín-Martínez

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

We investigate the interplay between genuine entanglement harvesting and communication mediated correlations for local particle detectors in expanding cosmological spacetimes. Focusing on a conformally coupled scalar field in de Sitter…

Quantum Physics · Physics 2026-04-29 Matheus H. Zambianco , Adam Teixidó-Bonfill , 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 study the harvesting of entanglement and mutual information by Unruh-DeWitt particle detectors from thermal and squeezed coherent field states. We prove (for arbitrary spatial dimensions, switching profiles and detector smearings) that…

Quantum Physics · Physics 2018-10-17 Petar Simidzija , Eduardo Martin-Martinez

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 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
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