Entanglement resonances of driven multi-partite quantum systems

被引:17
作者
Sauer, Simeon [1 ]
Mintert, Florian [1 ,2 ]
Gneiting, Clemens [1 ]
Buchleitner, Andreas [1 ]
机构
[1] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
[2] Univ Freiburg, Freiburg Inst Adv Studies, D-79104 Freiburg, Germany
关键词
RYDBERG ATOMS; DYNAMICS; IONIZATION; STATES; COHERENCE; GATES; SPINS;
D O I
10.1088/0953-4075/45/15/154011
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We show how to create maximally entangled dressed states of a weakly interacting multi-partite quantum system by suitably tuning an external, periodic driving field. Floquet theory allows us to relate, in a transparent manner, the occurrence of entanglement resonances to avoided crossings in the spectrum of quasi-energies, tantamount of well-defined conditions for the controlled, resonant interaction of particles. We demonstrate the universality of the phenomenon for periodically driven, weakly interacting two-level systems, by considering different interaction mechanisms and driving profiles. In particular, we show that entanglement resonances are a generic feature of driven, multi-partite systems, widely independent of the details of the interaction mechanism. Our results are therefore particularly relevant for experiments on interacting two-level systems, in which the microscopic realization of the inter-particle coupling is unknown.
引用
收藏
页数:18
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