论文信息 - Definitive number of atoms on demand: Controlling the number of atoms in a few-atom magneto-optical trap

Definitive number of atoms on demand: Controlling the number of atoms in a few-atom magneto-optical trap

A few Rb85 atoms were trapped in a micron-size magneto-optical trap with a high quadrupole magnetic-field gradient and the number of atoms was precisely controlled by suppressing stochastic loading and loss events via real-time feedback on the magnetic-field gradient. The measured occupation probability of a single atom was as high as 99%. Atoms up to five were also trapped with high occupation probabilities. The present technique could be used to make a deterministic atom source.

[1] P. Gould,et al. Trap-loss Collisions of 85Rb and 87Rb: Dependance on Trap Parameters , 1997 .

[2] Igor Protsenko,et al. Sub-poissonian loading of single atoms in a microscopic dipole trap , 2001, Nature.

[3] Dieter Meschede,et al. Cold collisions in a high-gradient magneto-optical trap , 2002 .

[4] D. Meschede,et al. Counting cold collisions , 1999, quant-ph/9910120.

[5] Jabez J. McClelland,et al. Atoms on demand: Fast, deterministic production of single Cr atoms , 2003 .

[6] Dieter Meschede,et al. Deterministic Delivery of a Single Atom , 2001, Science.

[7] W. Ertmer,et al. Statistical investigations on single trapped neutral atoms , 1996 .

[8] I. Chuang,et al. Quantum Computation and Quantum Information: Bibliography , 2010 .

[9] H. Kimble,et al. Observation of a single atom in a magneto-optical trap. , 1994, Optics letters.

[10] D. Meschede,et al. Observation of individual neutral atoms in magnetic and magneto-optical traps , 1996 .

[11] D. Meschede,et al. A simple model for optical capture of atoms in strong magnetic quadrupole fields , 1993 .

[12] Gallagher,et al. Collisional losses from a light-force atom trap. , 1989, Physical review letters.