TY - JOUR
T1 - Input-output theory for fermions in an atom cavity
AU - Search, C. P.
AU - Pötting, S.
AU - Zhang, W.
AU - Meystre, P.
PY - 2002
Y1 - 2002
N2 - We generalize the quantum optical input-output theory developed for optical cavities to ultracold fermionic atoms confined in a trapping potential, which forms an “atom cavity.” In order to account for the Pauli exclusion principle, quantum Langevin equations for all cavity modes are derived. The dissipative part of these multimode Langevin equations includes a coupling between cavity modes. We also derive a set of boundary conditions for the Fermi field that relate the output fields to the input fields and the field radiated by the cavity. Starting from a constant uniform current of fermions incident on one side of the cavity, we use the boundary conditions to calculate the occupation numbers and current density for the fermions that are reflected and transmitted by the cavity. 5555 2002 The American Physical Society.
AB - We generalize the quantum optical input-output theory developed for optical cavities to ultracold fermionic atoms confined in a trapping potential, which forms an “atom cavity.” In order to account for the Pauli exclusion principle, quantum Langevin equations for all cavity modes are derived. The dissipative part of these multimode Langevin equations includes a coupling between cavity modes. We also derive a set of boundary conditions for the Fermi field that relate the output fields to the input fields and the field radiated by the cavity. Starting from a constant uniform current of fermions incident on one side of the cavity, we use the boundary conditions to calculate the occupation numbers and current density for the fermions that are reflected and transmitted by the cavity. 5555 2002 The American Physical Society.
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U2 - 10.1103/PhysRevA.66.043616
DO - 10.1103/PhysRevA.66.043616
M3 - Article
AN - SCOPUS:85037199546
SN - 1050-2947
VL - 66
SP - 10
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
ER -