Mesoscopic Rydberg Gate Based on Electromagnetically Induced Transparency

被引：271

作者：

Mueller, M. ^{[1
,2
]}

Lesanovsky, I. ^{[1
,2
]}

Weimer, H. ^{[3
]}

Buechler, H. P. ^{[3
]}

Zoller, P. ^{[1
,2
]}

机构：

[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[2] Austrian Acad Sci, Inst Quantum Opt & Quantum Informat, A-6020 Innsbruck, Austria

[3] Univ Stuttgart, Inst Theoret Phys 3, D-70550 Stuttgart, Germany

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 17期

关键词：

ATOMS; BLOCKADE;

D O I：

10.1103/PhysRevLett.102.170502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate theoretically a parallelized C-NOT gate which allows us to entangle a mesoscopic ensemble of atoms with a single control atom in a single step, with high fidelity and on a microsecond time scale. Our scheme relies on the strong and long-ranged interaction between Rydberg atoms triggering electromagnetically induced transparency. By this we can robustly implement a conditional transfer of all ensemble atoms between two logical states, depending on the state of the control atom. We outline a many-body interferometer which allows a comparison of two many-body quantum states by performing a measurement of the control atom.

引用

页数：4

共 24 条

[1] Many-body physics with ultracold gases [J].

Bloch, Immanuel ;

Dalibard, Jean ;

Zwerger, Wilhelm .

REVIEWS OF MODERN PHYSICS, 2008, 80 (03) :885-964

[2] Three-body interactions with cold polar molecules [J].

Buechler, H. P. ;

Micheli, A. ;

Zoller, P. .

NATURE PHYSICS, 2007, 3 (10) :726-731

[3] Electromagnetically induced transparency: Optics in coherent media [J].

Fleischhauer, M ;

Imamoglu, A ;

Marangos, JP .

REVIEWS OF MODERN PHYSICS, 2005, 77 (02) :633-673

[4] 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

[5]

Gallagher T F., 1984, Rydberg Atoms

[6] Fast quantum gates for neutral atoms [J].

Jaksch, D ;

Cirac, JI ;

Zoller, P ;

Rolston, SL ;

Côté, R ;

Lukin, MD .

PHYSICAL REVIEW LETTERS, 2000, 85 (10) :2208-2211

[7] Rabi oscillations between ground and rydberg states with dipole-dipole atomic interactions [J].

Johnson, T. A. ;

Urban, E. ;

Henage, T. ;

Isenhower, L. ;

Yavuz, D. D. ;

Walker, T. G. ;

Saffman, M. .

PHYSICAL REVIEW LETTERS, 2008, 100 (11)

[8] Dipole blockade and quantum information processing in mesoscopic atomic ensembles [J].

Lukin, MD ;

Fleischhauer, M ;

Cote, R ;

Duan, LM ;

Jaksch, D ;

Cirac, JI ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 2001, 87 (03) :37901-1

[9] Single atom transistor in a 1D optical lattice [J].

Micheli, A ;

Daley, AJ ;

Jaksch, D ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 2004, 93 (14) :140408-1

[10] Quantum gates and multiparticle entanglement by Rydberg excitation blockade and adiabatic passage [J].

Moller, Ditte ;

Madsen, Lars Bojer ;

Molmer, Klaus .

PHYSICAL REVIEW LETTERS, 2008, 100 (17)

← 1 2 3 →