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Related papers: Entanglement harvesting in cosmic string spacetime

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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

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

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 analyze the entanglement generation in a pair of qubits that experience the vacuum fluctuations of a scalar field in the Cosmic String spacetime. The qubits are modeled as Unruh-DeWitt detectors coupled to a massless scalar field. We…

High Energy Physics - Theory · Physics 2024-07-25 Willy Izquierdo , J. Beltran , Enrique Arias

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 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 analyzed how entanglement harvesting is affected by the performance of a measurement on the quantum field. The measurement on the field is modelled as the coupling of a particle detector to the field, followed by a projective measurement…

Quantum Physics · Physics 2023-02-22 Héctor Maeso-García , José Polo-Gómez , 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 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

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

We explore the crucial role of relative space-time positioning between the two detectors in an operational two-party entanglement-harvesting protocol. Specifically we show that the protocol is robust if imprecision in spatial positioning…

Quantum Physics · Physics 2016-04-25 Eduardo Martin-Martinez , Barry C. Sanders

We explore entanglement harvesting with particle detectors that couple linearly to non-Hermitian fields. Specifically, we analyze the case of particle detectors coupled to a complex scalar quantum field and to a spin 1/2 fermionic field. We…

Quantum Physics · Physics 2022-03-30 T. Rick Perche , Caroline Lima , Eduardo Martín-Martínez

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

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 investigate the entanglement generation or harvesting between two identical, comoving Unruh-DeWitt detectors in the cosmological de Sitter spacetime. The detectors are assumed to be unentangled initially. They are individually coupled to…

General Relativity and Quantum Cosmology · Physics 2025-07-01 Shagun Kaushal , Sourav Bhattacharya

We investigate entanglement dynamics for two atoms coupling with fluctuating electromagnetic field in the cosmic string spacetime. We calculate the entanglement for different conditions. It is found that the entanglement behaviors are…

Quantum Physics · Physics 2020-03-05 Zhiming 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
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