Quantum radiation from a shaken two-level atom in vacuum

Abstract

We present a non-relativistic theory of quantum radiation generated by shaking a two-level atom in vacuum. Such radiation has the same origin of photon emission in dynamical Casimir effect. By performing a time-dependent "dressing" transformation to the Hamiltonian, we derive an interaction term that governs the radiation. In particular, we show that photon pairs can be generated, not only by shaking the position of the atom, but also by changing the internal states of the atom. As applications of our theory, we calculate the emission rate from an oscillating atom, and the multi-photon state generated in a single-photon scattering process.

7 pages

References in corpus (8)

• Current status of the Dynamical Casimir Effect
• Quantum Zeno and Anti-Zeno Effect without Rotating Wave Approximation
• Frequency conversion in ultrastrong cavity QED
• Ultrastrong coupling few-photon scattering theory
• Particle Production in Ultra-Strong Coupling Waveguide QED
• Microscopic dynamical Casimir effect
• Vacuum Rabi oscillation induced by virtual photons in the ultrastrong coupling regime
• Quantum radiation by an Unruh-DeWitt detector in oscillatory motion

Cited by in corpus (10)

• Non-Markovian dynamics with a giant atom coupled to a semi-infinite photonic waveguide
• Motion induced radiation and quantum friction for a moving atom
• Quantum Vacuum Sagnac Effect
• Non-Markovian dynamics with a driven three-level giant atom in a semi-infinite photonic waveguide
• Multiple single-photon generations in three-level atoms coupled to cavity with non-Markovian effects
• Shaking photons from the vacuum: acceleration radiation from vibrating atoms
• Dynamical Casimir effects with atoms: from the emission of photon pairs to geometric phases
• Motion induced excitation and radiation from an atom facing a mirror
• Atom-field dynamics in curved spacetime
• Dynamical atom-wall Casimir-Polder effect after a sudden change of the atomic position