Double-well atom trap for fluorescence detection at the Heisenberg limit

被引：14

作者：

Stroescu, Ion ^{[1
]}

Hume, David B. ^{[1
,2
]}

Oberthaler, Markus K. ^{[1
]}

机构：

[1] Heidelberg Univ, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany

[2] NIST, Boulder, CO 80305 USA

来源：

PHYSICAL REVIEW A | 2015年 / 91卷 / 01期

关键词：

STANDARD QUANTUM LIMIT; MAGNETOOPTICAL TRAPS; SINGLE ATOMS; ENTANGLEMENT; STATES;

D O I：

10.1103/PhysRevA.91.013412

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate an atom number detector capable of simultaneous detection of two mesoscopic ensembles with single-atom resolution. Such a sensitivity is a prerequisite for quantum metrology at a precision approaching the Heisenberg limit. Our system is based on fluorescence detection of atoms in a hybrid trap in which a dipole barrier divides a magneto-optical trap into two separated wells. We introduce a noise model describing the various sources contributing to the measurement error and report a limit of up to 500 atoms for single-atom resolution in the atom number difference.

引用

页数：6

共 31 条

[1] Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit
Appel, J.
Windpassinger, P. J.
Oblak, D.
Hoff, U. B.
Kjaergaard, N.
Polzik, E. S.
[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2009, 106 (27) : 10960 - 10965
[2] A quantum gas microscope for detecting single atoms in a Hubbard-regime optical lattice
Bakr, Waseem S.
Gillen, Jonathon I.
Peng, Amy
Foelling, Simon
Greiner, Markus
[J]. NATURE, 2009, 462 (7269) : 74 - U80
[3] Bohnet JG, 2014, NAT PHOTONICS, V8, P731, DOI [10.1038/NPHOTON.2014.151, 10.1038/nphoton.2014.151]
[4] Single-particle-sensitive imaging of freely propagating ultracold atoms
Buecker, R.
Perrin, A.
Manz, S.
Betz, T.
Koller, Ch
Plisson, T.
Rottmann, J.
Schumm, T.
Schmiedmayer, J.
[J]. NEW JOURNAL OF PHYSICS, 2009, 11
[5] Squeezing and entanglement in a Bose-Einstein condensate
Esteve, J.
Gross, C.
Weller, A.
Giovanazzi, S.
Oberthaler, M. K.
[J]. NATURE, 2008, 455 (7217) : 1216 - 1219
[6] Free-Space Lossless State Detection of a Single Trapped Atom
Fuhrmanek, A.
Bourgain, R.
Sortais, Y. R. P.
Browaeys, A.
[J]. PHYSICAL REVIEW LETTERS, 2011, 106 (13)
[7] Imaging a single atom in a time-of-flight experiment
Fuhrmanek, A.
Lance, A. M.
Tuchendler, C.
Grangier, P.
Sortais, Y. R. P.
Browaeys, A.
[J]. NEW JOURNAL OF PHYSICS, 2010, 12
[8] Cavity-Based Single Atom Preparation and High-Fidelity Hyperfine State Readout
Gehr, Roger
Volz, Juegen
Dubois, Guilhem
Steinmetz, Tilo
Colombe, Yves
Lev, Benjamin L.
Long, Romain
Esteve, Jerome
Reichel, Jakob
[J]. PHYSICAL REVIEW LETTERS, 2010, 104 (20)
[9] Nondestructive Fluorescent State Detection of Single Neutral Atom Qubits
Gibbons, Michael J.
Hamley, Christopher D.
Shih, Chung-Yu
Chapman, Michael S.
[J]. PHYSICAL REVIEW LETTERS, 2011, 106 (13)
[10] Quantum-enhanced measurements: Beating the standard quantum limit
Giovannetti, V
Lloyd, S
Maccone, L
[J]. SCIENCE, 2004, 306 (5700) : 1330 - 1336

← 1 2 3 4 →