QUANTUM-THEORY OF ATOMIC POSITION MEASUREMENT USING OPTICAL-FIELDS

被引:62
作者
THOMAS, JE
机构
来源
PHYSICAL REVIEW A | 1990年 / 42卷 / 09期
关键词
D O I
10.1103/PhysRevA.42.5652
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A simple quantum theory of recently suggested optical techniques for ultrahigh-resolution position measurement and localization of moving atoms in beams is presented. Both the internal and center-of-mass motion are treated quantum mechanically so that the limitations on the ultimate position resolution due to atomic motion and wave-mechanical diffraction are included in the analysis. The techniques utilize a miniaturized form of Raman-induced resonance imaging in which optical fields are used to make transitions from a long-lived initial state to a long-lived final state. The final state is shifted by the spatially varying potential of an applied force field in order to correlate the atomic position with its resonance frequency. Spatially varying level shifts are obtainable by using very large Zeeman field gradients or spatially varying light shifts in a small interaction volume. This results in very high spatial resolution. The atomic transit time across the optical-field region is limited by focusing to an ideal diameter that minimizes the spatial resolution length. The results of the analysis show that nanometer spatial resolution of the initial-state position distribution is attainable. Under appropriate conditions, the final-state spatial wave function can take the form of a minimum-uncertainty Gaussian wave packet obeying xp=Latin small letter h with stroke/2. Such states may prove useful in studying one-dimensional wave-packet motion in applied potentials. © 1990 The American Physical Society.
引用
收藏
页码:5652 / 5666
页数:15
相关论文
共 12 条
[1]   MEASURING THE VANDERWAALS FORCES BETWEEN A RYDBERG ATOM AND A METALLIC SURFACE [J].
ANDERSON, A ;
HAROCHE, S ;
HINDS, EA ;
JHE, W ;
MESCHEDE, D .
PHYSICAL REVIEW A, 1988, 37 (09) :3594-3597
[2]   LASER COOLING BELOW THE ONE-PHOTON RECOIL ENERGY BY VELOCITY-SELECTIVE COHERENT POPULATION TRAPPING [J].
ASPECT, A ;
ARIMONDO, E ;
KAISER, R ;
VANSTEENKISTE, N ;
COHENTANNOUDJI, C .
PHYSICAL REVIEW LETTERS, 1988, 61 (07) :826-829
[3]   LASER OPTICS OF NEUTRAL ATOMIC-BEAMS [J].
BALYKIN, VI ;
LETOKHOV, VS .
PHYSICS TODAY, 1989, 42 (04) :23-28
[4]   INTERFERENCE OF ATOMS IN SEPARATED OPTICAL-FIELDS [J].
CHEBOTAYEV, VP ;
DUBETSKY, BY ;
KASANTSEV, AP ;
YAKOVLEV, VP .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1985, 2 (11) :1791-1798
[5]  
HUEN HP, 1983, PHYS REV LETT, V51, P719
[6]  
MARTIN PJ, 1988, PHYS REV LETT, V60, P515, DOI 10.1103/PhysRevLett.60.515
[7]   QUANTUM-MECHANICAL MODELS OF POSITION MEASUREMENTS [J].
OZAWA, M .
PHYSICAL REVIEW A, 1990, 41 (03) :1735-1737
[8]   LASER COOLING AND ELECTROMAGNETIC TRAPPING OF NEUTRAL ATOMS [J].
PHILLIPS, WD ;
PRODAN, JV ;
METCALF, HJ .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1985, 2 (11) :1751-1767
[9]   CHANNELING ATOMS IN A LASER STANDING WAVE [J].
SALOMON, C ;
DALIBARD, J ;
ASPECT, A ;
METCALF, H ;
COHENTANNOUDJI, C .
PHYSICAL REVIEW LETTERS, 1987, 59 (15) :1659-1662
[10]   OBSERVATION OF RAMSEY FRINGES USING A STIMULATED, RESONANCE RAMAN TRANSITION IN A SODIUM ATOMIC-BEAM [J].
THOMAS, JE ;
HEMMER, PR ;
EZEKIEL, S ;
LEIBY, CC ;
PICARD, RH ;
WILLIS, CR .
PHYSICAL REVIEW LETTERS, 1982, 48 (13) :867-870