Filtering of matter-wave vibrational states via spatial adiabatic passage

被引:0
作者
Loiko, Yu. [1 ,2 ]
Ahufinger, V. [1 ,3 ]
Corbalan, R. [1 ]
Birkl, G. [4 ]
Mompart, J. [1 ]
机构
[1] Univ Autonoma Barcelona, Dept Fis, E-08193 Bellaterra, Spain
[2] Natl Acad Sci Belarus, Inst Phys, Minsk 220072, BELARUS
[3] Lluis Co 23, Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain
[4] Tech Univ Darmstadt, Inst Angew Phys, D-64289 Darmstadt, Germany
来源
PHYSICAL REVIEW A | 2011年 / 83卷 / 03期
关键词
SINGLE ATOMS; POPULATION TRANSFER; NEUTRAL ATOMS; ENTANGLEMENT; MANIPULATION; TRANSPORT; OPTICS; TRAPS; GATES;
D O I
10.1103/PhysRevA.83.033629
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We discuss the filtering of the vibrational states of a cold atom in an optical trap by chaining this trap with two empty ones and adiabatically controlling the tunneling. Matter-wave filtering is performed by selectively transferring the population of the highest populated vibrational state to the most distant trap while the population of the rest of the states remains in the initial trap. Analytical conditions for two-state filtering are derived and then applied to an arbitrary number of populated bound states. Realistic numerical simulations close to state-of-the-art experimental arrangements are performed by modeling the triple well with time-dependent Poschl-Teller potentials. In addition to filtering of vibrational states, we discuss applications for quantum tomography of the initial population distribution and engineering of atomic Fock states that, eventually, could be used for tunneling-assisted evaporative cooling.
引用
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页数:7
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