STABLE, TIGHTLY CONFINING MAGNETIC TRAP FOR EVAPORATIVE COOLING OF NEUTRAL ATOMS

被引：422

作者：

PETRICH, W

ANDERSON, MH

ENSHER, JR

CORNELL, EA

机构：

[1] NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309

[2] UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.74.3352

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe a new type of magnetic trap whose time-averaged, orbiting potential (TOP) supplies tight and harmonic confinement of atoms. The TOP trap allows for long storage times even for cold atom samples by suppressing the loss due to nonadiabatic spin flips which limits the storage time in an ordinary magnetic quadrupole trap. In preliminary experiments on evaporative cooling of 87Rb atoms in the TOP trap, we obtain a phase-space density enhancement of up to 3 orders of magnitude and temperatures as low as 200 nK. © 1995 The American Physical Society.

引用

页码：3352 / 3355

页数：4

共 20 条

[1] REDUCTION OF LIGHT-ASSISTED COLLISIONAL LOSS RATE FROM A LOW-PRESSURE VAPOR-CELL TRAP [J].

ANDERSON, MH ;

PETRICH, W ;

ENSHER, JR ;

CORNELL, EA .

PHYSICAL REVIEW A, 1994, 50 (05) :R3597-R3600

[2] COMPUTER-SIMULATION OF NEUTRAL ATOM TRAPS [J].

ANTILLON, A ;

GONGORA, A ;

SELIGMAN, TH .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1992, 24 (04) :347-350

[3] MAGNETOSTATIC TRAPPING FIELDS FOR NEUTRAL ATOMS [J].

BERGEMAN, T ;

EREZ, G ;

METCALF, HJ .

PHYSICAL REVIEW A, 1987, 35 (04) :1535-1546

[4] QUANTIZED MOTION OF ATOMS IN A QUADRUPOLE MAGNETOSTATIC TRAP [J].

BERGEMAN, TH ;

MCNICHOLL, P ;

KYCIA, J ;

METCALF, H ;

BALAZS, NL .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1989, 6 (11) :2249-2256

[5] MULTIPLY LOADED, AC MAGNETIC TRAP FOR NEUTRAL ATOMS [J].

CORNELL, EA ;

MONROE, C ;

WIEMAN, CE .

PHYSICAL REVIEW LETTERS, 1991, 67 (18) :2439-2442

[6] RAMAN COOLING OF ATOMS IN 2-DIMENSIONS AND 3-DIMENSIONS [J].

DAVIDSON, N ;

LEE, HJ ;

KASEVICH, M ;

CHU, S .

PHYSICAL REVIEW LETTERS, 1994, 72 (20) :3158-3161

[7]

DAVIS KB, 1994, IN PRESS INT C ATOMI, V14

[8] EXCHANGE-COLLISION TECHNIQUE FOR RF SPECTROSCOPY OF STORED IONS [J].

MAJOR, FG ;

DEHMELT, HG .

PHYSICAL REVIEW, 1968, 170 (01) :91-&

[9] EVAPORATIVE COOLING OF SPIN-POLARIZED ATOMIC-HYDROGEN [J].

MASUHARA, N ;

DOYLE, JM ;

SANDBERG, JC ;

KLEPPNER, D ;

GREYTAK, TJ ;

HESS, HF ;

KOCHANSKI, GP .

PHYSICAL REVIEW LETTERS, 1988, 61 (08) :935-938

[10] 1ST OBSERVATION OF MAGNETICALLY TRAPPED NEUTRAL ATOMS [J].

MIGDALL, AL ;

PRODAN, JV ;

PHILLIPS, WD ;

BERGEMAN, TH ;

METCALF, HJ .

PHYSICAL REVIEW LETTERS, 1985, 54 (24) :2596-2599

← 1 2 →