Interactions of quantum systems with pulses of quantized radiation: From a cascaded master equation to a traveling mode perspective
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Interactions of quantum systems with pulses of quantized radiation : From a cascaded master equation to a traveling mode perspective. / Christiansen, Victor Rueskov; Kiilerich, Alexander Holm; Mølmer, Klaus.
In: Physical Review A, Vol. 107, No. 1, 013706, 2023.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Interactions of quantum systems with pulses of quantized radiation
T2 - From a cascaded master equation to a traveling mode perspective
AU - Christiansen, Victor Rueskov
AU - Kiilerich, Alexander Holm
AU - Mølmer, Klaus
N1 - Publisher Copyright: © 2023 American Physical Society.
PY - 2023
Y1 - 2023
N2 - The interaction of a propagating pulse of quantum radiation with a localized quantum system can be described by a cascaded master equation with a distinct initially populated input and a finally populated output field mode [Kiilerich and Mølmer, Phys. Rev. Lett. 123, 123604 (2019)0031-900710.1103/PhysRevLett.123.123604]. By transformation to an appropriate interaction picture, we break the cascaded nature of the master equation and recover an effective time-dependent interaction with a lossless single mode and a supplementary lossy mode. The former closely represents the traveling pulse, while the latter constitutes a non-Markovian component in the exchange of quanta between the scatterer and the quantized field. The transformed master equation offers important insights into the system dynamics, and it permits numerically efficient solutions.
AB - The interaction of a propagating pulse of quantum radiation with a localized quantum system can be described by a cascaded master equation with a distinct initially populated input and a finally populated output field mode [Kiilerich and Mølmer, Phys. Rev. Lett. 123, 123604 (2019)0031-900710.1103/PhysRevLett.123.123604]. By transformation to an appropriate interaction picture, we break the cascaded nature of the master equation and recover an effective time-dependent interaction with a lossless single mode and a supplementary lossy mode. The former closely represents the traveling pulse, while the latter constitutes a non-Markovian component in the exchange of quanta between the scatterer and the quantized field. The transformed master equation offers important insights into the system dynamics, and it permits numerically efficient solutions.
U2 - 10.1103/PhysRevA.107.013706
DO - 10.1103/PhysRevA.107.013706
M3 - Journal article
AN - SCOPUS:85146144982
VL - 107
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 1
M1 - 013706
ER -
ID: 372817447