TY - JOUR
T1 - Dressed relaxation and dephasing in a strongly driven two-level system
AU - Wilson, C. M.
AU - Johansson, G.
AU - Duty, T.
AU - Persson, F.
AU - Sandberg, M.
AU - Delsing, P.
PY - 2010/1/29
Y1 - 2010/1/29
N2 - We study relaxation and dephasing in a strongly driven two-level system interacting with its environment. We develop a theory which gives a straightforward physical picture of the complex dynamics of the system in terms of dressed states. In addition to the dressing of the energy diagram, we describe the dressing of relaxation and dephasing. We find a good quantitative agreement between the theoretical calculations and measurements of a superconducting qubit driven by an intense microwave field. The competition of various processes leads to a rich structure in the observed behavior, including signatures of population inversion.
AB - We study relaxation and dephasing in a strongly driven two-level system interacting with its environment. We develop a theory which gives a straightforward physical picture of the complex dynamics of the system in terms of dressed states. In addition to the dressing of the energy diagram, we describe the dressing of relaxation and dephasing. We find a good quantitative agreement between the theoretical calculations and measurements of a superconducting qubit driven by an intense microwave field. The competition of various processes leads to a rich structure in the observed behavior, including signatures of population inversion.
UR - http://www.scopus.com/inward/record.url?scp=77954808966&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.81.024520
DO - 10.1103/PhysRevB.81.024520
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AN - SCOPUS:77954808966
SN - 1098-0121
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 2
M1 - 024520
ER -