Zobrazeno 1 - 10
of 49
pro vyhledávání: '"James D. Cresser"'
Publikováno v:
Physics, Vol 6, Iss 2, Pp 905-920 (2024)
We investigate the effects of the electromagnetic vacuum field on a harmonically bound electron. We show that in the electric-dipole approximation the model atom couples only to an effective one-dimensional electric field. In a simplified form, in wh
Externí odkaz:
https://doaj.org/article/398a5b4d5ee04c63b6ed2249830c1a43
Publikováno v:
Quantum, Vol 8, p 1357 (2024)
The spin-boson model usually considers a spin coupled to a single bosonic bath. However, some physical situations require coupling of the spin to multiple environments. For example, spins interacting with phonons in three-dimensional magnetic materia
Externí odkaz:
https://doaj.org/article/8be5bf25695a4d9298887111e696cbbf
Autor:
James D. Cresser
Publikováno v:
Physica Scripta. 94:034005
The micromaser is examined with the aim of understanding certain of its properties based on a time-reversed quantum trajectory analysis. The background theory of master equations derived from a repeated interaction model perspective is briefly review
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e84dc9b720822309712f8a8770b068a1
https://doi.org/10.1088/1402-4896/aaf902
https://doi.org/10.1088/1402-4896/aaf902
Autor:
C. Facer, James D. Cresser
Publikováno v:
Optics Communications. 283:773-780
A non-Markovian master equation is obtained for a two level atom driven by a phase noisy laser. The derivation is based on obtaining an equation for the density operator of the system averaged over the previous histories of the external noise. Averag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2855986579f40396733f53e3c7b3024e
https://doi.org/10.1016/j.optcom.2009.10.052
https://doi.org/10.1016/j.optcom.2009.10.052
Autor:
James D. Cresser
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 39:S733-S747
It is shown that complete information on the micromaser cavity field correlation function and hence the spectrum for the cavity field at absolute zero is encoded on the atomic beam exiting from the cavity. A possible means of measuring the atomic bea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8035ab03fd43be46914309f3b93391c0
https://doi.org/10.1088/0953-4075/39/15/s19
https://doi.org/10.1088/0953-4075/39/15/s19
Publikováno v:
Journal of Physics: Condensed Matter. 18:S401-S410
We present a quantum theory of friction in which interactions with the surrounding medium are described by generalized measurements of the particle's position and momentum. The theory predicts intrinsically quantum contributions to the particle's ste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81635ea360035b970046471b5122fc0b
https://doi.org/10.1088/0953-8984/18/16/s02
https://doi.org/10.1088/0953-8984/18/16/s02
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 38:3117-3128
We derive a quantum theory of matter-wave detection from microscopic considerations. We calculate both the short-time approximation and the long-time correction to the detection rate of matter waves. The detection rate can be related to the flux of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::208008abb659746a6c59d69c24f4fd09
https://doi.org/10.1088/0953-4075/38/17/004
https://doi.org/10.1088/0953-4075/38/17/004
Autor:
James D. Cresser, Stephen M. Barnett
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 36:1755-1759
We show how the physical processes responsible for the spontaneous decay of a dipole atom conspire to guarantee that the spontaneous decay rate of the atom transforms between different inertial reference frames exactly as required by time dilation. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f051376bf2a5efa6c1d836fd66a91323
https://doi.org/10.1088/0953-4075/36/9/307
https://doi.org/10.1088/0953-4075/36/9/307
Publikováno v:
Physical Review A. 90
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::945397820e61688587bc8414e89cb9a6
https://doi.org/10.1103/physreva.90.012339
https://doi.org/10.1103/physreva.90.012339
Publikováno v:
Physical Review A. 89
Master equations govern the time evolution of a quantum system interacting with an environment, and may be written in a variety of forms. Time-independent or memoryless master equations, in particular, can be cast in the well-known Lindblad form. Any
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dabf5117f0402cd61cf7927c1b5b8bea
https://doi.org/10.1103/physreva.89.042120
https://doi.org/10.1103/physreva.89.042120