6533b821fe1ef96bd127ada6
RESEARCH PRODUCT
Nonequilibrium dressing in a cavity with a movable reflecting mirror
Salvatore ButeraRoberto PassanteFederico ArmataLucia RizzutoMyungshik Kimsubject
PhysicsHigh Energy Physics - TheoryQuantum Physics010308 nuclear & particles physicsNon-equilibrium thermodynamicsFOS: Physical sciencesHarmonic potential01 natural sciencesVacuum fluctuations. Energy density. Dynamical Casimir effectMassless particlesymbols.namesakeClassical mechanicsRadiation pressureHigh Energy Physics - Theory (hep-th)Bounded function0103 physical sciencessymbols010306 general physicsHamiltonian (quantum mechanics)Quantum Physics (quant-ph)Scalar fieldQuantumdescription
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-mechanically, and they can interact each other via the radiation pressure operator. We investigate the dynamical evolution of mirror and field starting from a nonequilibrium initial state, and their local interaction which brings the system to a stationary configuration for long times. This allows us to study the time-dependent dressing process of the movable mirror interacting with the field, and its dynamics leading to a local equilibrium dressed configuration. Also, in order to explore the effect of the radiation pressure on both sides of the movable mirror, we generalize the effective field-mirror Hamiltonian and previous results to the case of two cavities sharing the same mobile boundary. This leads us to address, in the appropriate limit, the dynamical dressing problem of a single mobile wall, bounded by a harmonic potential, in the vacuum space.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 |