Atom interferometer based on phase coherent splitting of Bose-Einstein condensates with an integrated magnetic grating

被引：27

作者：

Guenther, A. ^{[1
]}

Kraft, S. ^{[1
]}

Zimmermann, C. ^{[1
]}

Fortagh, J. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.98.140403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the phase coherent splitting of Bose-Einstein condensates by means of a phase grating produced near the surface of a microelectronic chip. A lattice potential with a period of 4 mu m is generated by the superposition of static and oscillating magnetic fields. Precise control of the diffraction is achieved by controlling the currents in the integrated conductors. The interference of overlapping diffraction orders is observed after 8 ms of propagation in a harmonic trap and subsequent ballistic expansion of the atomic ensemble. By analyzing the interference pattern we show a reproducible phase relation between the diffraction orders with an uncertainty limited by the resolution of the diffraction grating.

引用

页数：4

共 21 条

[1] Micro traps for quantum information processing and precision force sensing [J].

Birkl, Gerhard ;

Fortagh, Jozsef .

LASER & PHOTONICS REVIEWS, 2007, 1 (01) :12-23

[2] Waveguide for Bose-Einstein condensates [J].

Bongs, K ;

Burger, S ;

Dettmer, S ;

Hellweg, D ;

Arlt, J ;

Ertmer, W ;

Sengstock, K .

PHYSICAL REVIEW A, 2001, 63 (03) :1-4

[3]

CASTIN Y, 1996, PHYS REV LETT, V77, P5135

[4] Magnetic microtraps for ultracold atoms [J].

Fortagh, Jozsef ;

Zimmermann, Claus .

REVIEWS OF MODERN PHYSICS, 2007, 79 (01) :235-289

[5] Diffraction of a bose-einstein condensate from a magnetic lattice on a microchip -: art. no. 170405 [J].

Günther, A ;

Kraft, S ;

Kemmler, M ;

Koelle, D ;

Kleiner, R ;

Zimmermann, C ;

Fortágh, J .

PHYSICAL REVIEW LETTERS, 2005, 95 (17)

[6] Combined chips for atom optics -: art. no. 063619 [J].

Günther, A ;

Kemmler, M ;

Kraft, S ;

Vale, CJ ;

Zimmermann, C ;

Fortágh, J .

PHYSICAL REVIEW A, 2005, 71 (06)

[7] A well-collimated quasi-continuous atom laser [J].

Hagley, EW ;

Deng, L ;

Kozuma, M ;

Wen, J ;

Helmerson, K ;

Rolston, SL ;

Phillips, WD .

SCIENCE, 1999, 283 (5408) :1706-1709

[8] ATOMIC DIFFRACTION BY A THIN PHASE GRATING [J].

HENKEL, C ;

COURTOIS, JY ;

ASPECT, A .

JOURNAL DE PHYSIQUE II, 1994, 4 (11) :1955-1974

[9] Long phase coherence time and number squeezing of two Bose-Einstein condensates on an atom chip [J].

Jo, G. -B. ;

Shin, Y. ;

Will, S. ;

Pasquini, T. A. ;

Saba, M. ;

Ketterle, W. ;

Pritchard, D. E. ;

Vengalattore, M. ;

Prentiss, M. .

PHYSICAL REVIEW LETTERS, 2007, 98 (03)

[10]

JUDD TE, IN PRESS

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