Nonclassical field dynamics in photonic band structures: Atomic-beam resonant interaction with a spatially periodic field mode

Universal Dynamical Control of Quantum Mechanical Decay: Modulation of the Coupling to the Continuum

“…Expression (7) with the substitution (12) is completely analogous to the universal formula describing measurement effects on quantum evolution in [2]. This analogy between unitary and measurement effects stems from the ability to emulate projective measurements by the dephasing of the level evolution caused by classical random fields [2,5].…”

Theory of Dynamical Control of Qubit Decay and Decoherence

“…1(a)]. Only in the opposite limit can one approximately set in (39), yielding (45) where (46) is the extension of the GR rate to the case of a time-dependent coupling.…”

“…Amplitude modulation (AM) of the coupling arises, e.g., for radiative-decay modulation due to atomic motion through a high-cavity or a photonic crystal [45], [46] or for atomic tunneling in optical lattices with time-varying lattice acceleration [28], [47]. Let the coupling be turned on and off periodically, for the time and , respectively, i.e., for for (71)…”

Conditional generation of non-classical states in a non-degenerate two-photon micromaser: Equal-intensity pair-Fock states preparation. I

“…In the field of quantum communications the possibility of transmitting, with relatively high capacity, information by multiple parallel 'number state single channels' has in fact been analysed very recently [15]. T h e experimental project presented in this paper is based on a conditional measurement approach [4,16,17]. Generally speaking, a controllable micromaser-based preparation of cavity field states is associated with a probability of success which more or less rapidly decreases as function of the number of atoms flying through the cavity.…”