2024-03-28T14:54:05Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/475572016-02-17T06:49:38Zcom_10261_31com_10261_3com_10261_89col_10261_284col_10261_342
00925njm 22002777a 4500
dc
Reuther, Georg M.
author
Zueco, David
author
Hänggi, Peter
author
Kohler, Sigmund
author
2011-01
We generalize a recently developed scheme for monitoring coherent quantum dynamics with good time resolution and low backaction [ Reuther et al. Phys. Rev. Lett. 102 033602 (2009)] to the case of more complex quantum dynamics of one or several qubits. The underlying idea is to measure with lock-in techniques the response of the quantum system to a high-frequency ac field. We demonstrate that this scheme also allows one to observe quantum dynamics with many frequency scales, such as that of a qubit undergoing Landau-Zener transitions. Moreover, we propose how to measure the entanglement between two qubits as well as the collective dynamics of qubit arrays.
Physical Review B 83(1): 014303 (2011)
1098-0121
http://hdl.handle.net/10261/47557
10.1103/PhysRevB.83.014303
1550-235X
Monitoring entanglement evolution and collective quantum dynamics