Please use this identifier to cite or link to this item: https://repositorio.ufscar.br/handle/ufscar/19324
Title: Thermodynamics of the Ramsey Zone
Subject: Quantum thermodynamics;Cavity quantum electrodynamics;Ramsey zone
Description: We studied the thermodynamic properties such as the entropy, heat (𝐽𝑄), and work (𝐽𝑊) rates involved when an atom passes through a Ramsey zone, which consists of a mode field inside a low-quality factor cavity that behaves classically, promoting rotations on the atomic state. Focusing on the atom, we show that 𝐽𝑊 predominates when the atomic rotations are successful, maintaining its maximum purity as computed by the von Neumann entropy. Conversely, 𝐽𝑄 stands out when the atomic state ceases to be pure due to its entanglement with the cavity mode. With this, we interpret the quantum-to-classical transition in light of the heat and work rates. Besides, we show that, for the cavity mode to work as a Ramsey zone (classical field), several photons (of the order of 106) need to cross the cavity, which explains its classical behavior, even when the inside average number of photons is of the order of unity.
Authors: de Assis, Rogério Jorge
Diniz, Ciro Micheletti
de Almeida, Norton Gomes
Villas-Bôas, Celso Jorge
URI: https://repositorio.ufscar.br/handle/ufscar/19324
Other Identifiers:  
Sponsorship: Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Fundação de Amparo à Pesquisa do Estado de Goiás (FAPEG)
Sponsor ID: 2021/04672-0
2019/11999-5
311612/2021- 0
301500/2018-5
465469/2014-0
001
Rights: Attribution-NonCommercial-NoDerivs 3.0 Brazil
Date:  
Available Data: 16-Feb-2024
29-Jun-2024
Format:  
Type: Dataset
Publisher: Universidade Federal de São Carlos
Language :  
Appears in Collections:Repositório dados - UFSCar



This item is licensed under a Creative Commons License Creative Commons