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RESEARCH PRODUCT
Anti-dynamical Casimir effect with an ensemble of qubits
A. V. DodonovA. V. DodonovLucas Cabrera Monteirosubject
PhysicsPhotonGeneral Physics and AstronomyState (functional analysis)Dissipation01 natural sciences010305 fluids & plasmasCasimir effectModulationQuantum mechanicsQubitQuantum electrodynamics0103 physical sciencesHarmonic010306 general physicsFrequency modulationComputer Science::Databasesdescription
Abstract We consider the interaction between a single cavity mode and N ≫ 1 identical qubits, assuming that any system parameter can be rapidly modulated in situ by external bias. It is shown that, for the qubits initially in the ground states, three photons can be coherently annihilated in the dispersive regime for harmonic modulation with frequency 3 ω 0 − Ω 0 , where ω 0 ( Ω 0 ) is the bare cavity (qubit) frequency. This phenomenon can be called “Anti-dynamical Casimir effect”, since a pair of excitations is destroyed without dissipation due to the external modulation. For the initial vacuum cavity state, three qubit excitations can also be annihilated for the modulation frequency 3 Ω 0 − ω 0 .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-04-01 | Physics Letters A |