Measurement of the angular dependence of the dipole-dipole interaction between two individual Rydberg atoms at a Forster resonance

被引：71

作者：

Ravets, Sylvain ^{[1
]}

Labuhn, Henning ^{[1
]}

Barredo, Daniel ^{[1
]}

Lahaye, Thierry ^{[1
]}

Browaeys, Antoine ^{[1
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8501, Lab Charles Fabry,Inst Opt, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW A | 2015年 / 92卷 / 02期

基金：

欧盟地平线“2020”;

关键词：

BLOCKADE; GAS;

D O I：

10.1103/PhysRevA.92.020701

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We measure the angular dependence of the resonant dipole-dipole interaction between two individual Rydberg atoms with controlled relative positions. By applying a combination of static electric and magnetic fields on the atoms, we demonstrate the possibility to isolate a single interaction channel at a Forster resonance, that shows a well-defined angular dependence. We first identify spectroscopically the Forster resonance of choice and we then perform a direct measurement of the interaction strength between the two atoms as a function of the angle between the internuclear axis and the quantization axis. Our results show good agreement with the angular dependence alpha(1 - 3 cos(2)theta) expected for this resonance. Understanding in detail the angular dependence of resonant interactions is important in view of using Forster resonances for quantum state engineering with Rydberg atoms.

引用

页数：5

共 47 条

[1] Resonant dipole-dipole energy transfer in a nearly frozen Rydberg gas [J].

Anderson, WR ;

Veale, JR ;

Gallagher, TF .

PHYSICAL REVIEW LETTERS, 1998, 80 (02) :249-252

[2] Dephasing of resonant energy transfer in a cold Rydberg gas [J].

Anderson, WR ;

Robinson, MP ;

Martin, JDD ;

Gallagher, TF .

PHYSICAL REVIEW A, 2002, 65 (06) :5

[3] Demonstration of a Strong Rydberg Blockade in Three-Atom Systems with Anisotropic Interactions [J].

Barredo, D. ;

Ravets, S. ;

Labuhn, H. ;

Beguin, L. ;

Vernier, A. ;

Nogrette, F. ;

Lahaye, T. ;

Browaeys, A. .

PHYSICAL REVIEW LETTERS, 2014, 112 (18)

[4] Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms [J].

Barredo, Daniel ;

Labuhn, Henning ;

Ravets, Sylvain ;

Lahaye, Thierry ;

Browaeys, Antoine ;

Adams, Charles S. .

PHYSICAL REVIEW LETTERS, 2015, 114 (11)

[5] Direct Measurement of the van der Waals Interaction between Two Rydberg Atoms [J].

Beguin, L. ;

Vernier, A. ;

Chicireanu, R. ;

Lahaye, T. ;

Browaeys, A. .

PHYSICAL REVIEW LETTERS, 2013, 110 (26)

[6] Effects of electric fields on ultracold Rydberg atom interactions [J].

Cabral, J. S. ;

Kondo, J. M. ;

Goncalves, L. F. ;

Nascimento, V. A. ;

Marcassa, L. G. ;

Booth, D. ;

Tallant, J. ;

Schwettmann, A. ;

Overstreet, K. R. ;

Sedlacek, J. ;

Shaffer, J. P. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2011, 44 (18)

[7] Angular dependence of the dipole-dipole interaction in a nearly one-dimensional sample of Rydberg atoms [J].

Carroll, TJ ;

Claringbould, K ;

Goodsell, A ;

Lim, MJ ;

Noel, MW .

PHYSICAL REVIEW LETTERS, 2004, 93 (15) :153001-1

[8] Dipole blockade in a cold Rydbergatomic sample [Invited] [J].

Comparat, Daniel ;

Pillet, Pierre .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2010, 27 (06) :A208-A232

[9] Quantum random walk with Rydberg atoms in an optical lattice [J].

Cote, Robin ;

Russell, Alexander ;

Eyler, Edward E. ;

Gould, Phillip L. .

NEW JOURNAL OF PHYSICS, 2006, 8

[10] Observation of collective excitation of two individual atoms in the Rydberg blockade regime [J].

Gaetan, Alpha ;

Miroshnychenko, Yevhen ;

Wilk, Tatjana ;

Chotia, Amodsen ;

Viteau, Matthieu ;

Comparat, Daniel ;

Pillet, Pierre ;

Browaeys, Antoine ;

Grangier, Philippe .

NATURE PHYSICS, 2009, 5 (02) :115-118

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