Qubit motion as a microscopic model for the dynamical Casimir effect
Artikel i vetenskaplig tidskrift, 2021

The generation of photons from the vacuum by means of the movement of a mirror is known as the dynamical Casimir effect (DCE). In general, this phenomenon is effectively described by a field with time-dependent boundary conditions. Alternatively, we introduce a microscopic model of the DCE capable of capturing the essential features of the effect with no time-dependent boundary conditions. Besides the field, such a model comprises a subsystem representing the mirror's internal structure. In this work, we study one of the most straightforward mirror systems: a qubit moving in a cavity and coupled to one of the bosonic modes. We find that under certain conditions on the qubit's movement that do not depend on its physical properties, a large number of photons may be generated without changing the qubit state, as should be expected for a microscopic model of the mirror.

Författare

A. Agusti

Consejo Superior de Investigaciones Científicas (CSIC)

Laura García Álvarez

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

E. Solano

Shanghai University

Universidad del Pais Vasco / Euskal Herriko Unibertsitatea

Basque Foundation for Science (Ikerbasque)

Kipu Quantum

C. Sabin

Consejo Superior de Investigaciones Científicas (CSIC)

PHYSICAL REVIEW A

2469-9926 (ISSN) 2469-9934 (eISSN)

Vol. 103 6 062201

Ämneskategorier

Teknisk mekanik

Beräkningsmatematik

Annan fysik

DOI

10.1103/PhysRevA.103.062201

Mer information

Senast uppdaterat

2021-06-21