106 citations · 417 across the 24 of their papers we have counts for
13 papers · 1 filter
Closed-time-path approach to the optomechanical back-reaction problem
Salvatore Butera
We present a perturbative closed-time-path (in-in) formulation of an optomechanical system in which a quantum field interacts with a moving mirror via radiation pressure. We derive…
Corrections to the Optomechanical Hamiltonian from Quadratic Fluctuations of a Moving Mirror
Salvatore Butera
We extend the theory of the radiation pressure to include quadratic fluctuations in the position of a moving mirror. This enables the introduction of a generalized radiation pressu…
Optomechanical Backreaction of Quantum Field Processes in Dynamical Casimir Effect
Yu-Cun Xie, Salvatore Butera, Bei-Lok Hu
Dynamical Casimir effect (DCE) and cosmological particle creation (CPC) share the same underlying physical mechanism, that of parametric amplification of vacuum fluctuations in the…
Noise and dissipation on a moving mirror induced by the dynamical Casimir emission
Salvatore Butera
We adopt an open quantum system approach to study the effects of the back-reaction from a quantum field onto the dynamics of a moving mirror. We describe the coupling between the m…
Field observables near a fluctuating boundary
Federico Armata, Salvatore Butera, Federico Montalbano +2
We review several aspects related to the confinement of a massless scalar field in a cavity with a movable conducting wall of finite mass, free to move around its equilibrium posit…
Numerical studies of back-reaction effects in an analog model of cosmological pre-heating
Salvatore Butera, Iacopo Carusotto
We theoretically propose an atomic Bose-Einstein condensate as an analog model of back-reaction effects during the pre-heating stage of early Universe. In particular, we address th…
Influence functional for two mirrors interacting via radiation pressure
Salvatore Butera
We study the effective dynamics of two mirrors, forming an optical cavity, and interacting with the cavity field via radiation pressure. We pursue a perturbative influence function…
Quantum fluctuations of the friction force induced by the dynamical Casimir emission
Salvatore Butera, Iacopo Carusotto
We study a quantum model of dynamical Casimir effect in an optical cavity enclosed by a freely moving mirror attached to a harmonic spring. The quantum fluctuations of the friction…
Mechanical back-reaction effect of the dynamical Casimir emission
Salvatore Butera, Iacopo Carusotto
We consider an optical cavity enclosed by a freely moving mirror attached to a spring and we study the quantum friction effect exerted by the dynamical Casimir emission on the mech…
Nonequilibrium dressing in a cavity with a movable reflecting mirror
Federico Armata, M. S. Kim, Salvatore Butera +2
We consider a movable mirror coupled to a one-dimensional massless scalar field in a cavity. Both the field and the mirror's mechanical degrees of freedom are described quantum-mec…
Effect of boundaries on vacuum field fluctuations and radiation-mediated interactions between atoms
F. Armata, S. Butera, G. Fiscelli +6
In this paper we discuss and review several aspects of the effect of boundary conditions and structured environments on dispersion and resonance interactions involving atoms or mol…
Vacuum Casimir energy densities and field divergences at boundaries
Nicola Bartolo, Salvatore Butera, Margherita Lattuca +3
We consider and review the emergence of singular energy densities and field fluctuations at sharp boundaries or point-like field sources in the vacuum. The presence of singular ene…
Field Fluctuations in a One-Dimensional Cavity with a Mobile Wall
Salvatore Butera, Roberto Passante
We consider a scalar field in a one-dimensional cavity with a mobile wall. The wall is assumed bounded by a harmonic potential and its mechanical degrees of freedom are treated qua…