title: Second quantization and atomic spontaneous emission inside one-dimensional photonic crystals via a quasinormal-modes approach.
abstract: An extension of the second quantization scheme based on the quasinormal-modes theory to one-dimensional photonic band gap (PBG) structures is discussed. Such structures, treated as double open optical cavities, are studied as part of a compound closed system including the electromagnetic radiative external bath. The electromagnetic field inside the photonic crystal is successfully represented by a new class of modes called quasinormal modes. Starting from this representation we introduce the Feynman's propagator to calculate the decay rate of a dipole inside a PBG structure, related to the density of modes, in the presence of the vacuum fluctuations outside the one-dimensional cavity.
authors.affiliation: INFM at Dipartimento di Energetica, Università La Sapienza di Roma, Via Scarpa 16, 00161, Roma, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Severini
authors.forename: A
authors.initials: A
authors.lastname: Settimi
authors.forename: C
authors.initials: C
authors.lastname: Sibilia
authors.forename: M
authors.initials: M
authors.lastname: Bertolotti
authors.forename: A
authors.initials: A
authors.lastname: Napoli
authors.forename: A
authors.initials: A
authors.lastname: Messina