Quasieigenstate Coalescence in an Atom-Cavity Quantum Composite

被引：158

作者：

Choi, Youngwoon ^{[1
]}

Kang, Sungsam ^{[1
]}

Lim, Sooin ^{[1
]}

Kim, Wookrae ^{[1
]}

Kim, Jung-Ryul ^{[1
]}

Lee, Jai-Hyung ^{[1
]}

An, Kyungwon ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Phys & Astron, Seoul 151747, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 15期

关键词：

EXCEPTIONAL POINTS; SINGLE-PHOTON; LASER; DOT;

D O I：

10.1103/PhysRevLett.104.153601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first direct observation of an exceptional point (EP) in an open quantum composite of a single atom and a high-Q cavity mode. The atom-cavity coupling constant was made a continuous variable by utilizing the multisublevel nature of a single rubidium atom when it is optimally coupled to the cavity mode. The spectroscopic properties of quasieigenstates of the atom-cavity composite were experimentally investigated near the EP. Branch-point singularity of quasieigenenergies was observed and its 4 pi symmetry was demonstrated. Consequently, the cavity transmission at the quasieigenstate was observed to exhibit a critical behavior at the EP.

引用

页数：4

共 32 条

[11] Phases of wave functions and level repulsion
Heiss, WD
[J]. EUROPEAN PHYSICAL JOURNAL D, 1999, 7 (01) : 1 - 4
[12] Real-time cavity QED with single atoms
Hood, CJ
Chapman, MS
Lynn, TW
Kimble, HJ
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (19) : 4157 - 4160
[13] SUPERMIRROR PHASE ANISOTROPY MEASUREMENT
JACOB, D
VALLET, M
BRETENAKER, F
LEFLOCH, A
[J]. OPTICS LETTERS, 1995, 20 (07) : 671 - 673
[14] KANG S, ARXIV09063584
[15] Kato T., 1966, PERTURBATION THEORY
[16] Two-Photon Gateway in One-Atom Cavity Quantum Electrodynamics
Kubanek, A.
Ourjoumtsev, A.
Schuster, I.
Koch, M.
Pinkse, P. W. H.
Murr, K.
Rempe, G.
[J]. PHYSICAL REVIEW LETTERS, 2008, 101 (20)
[17] Deterministic single-photon source for distributed quantum networking
Kuhn, A
Hennrich, M
Rempe, G
[J]. PHYSICAL REVIEW LETTERS, 2002, 89 (06) : 1 - 067901
[18] LASER-INDUCED DEGENERACIES INVOLVING AUTOIONIZING STATES IN COMPLEX ATOMS
LATINNE, O
KYLSTRA, NJ
DORR, M
PURVIS, J
TERAODUNSEATH, M
JOACHAIN, CJ
BURKE, PG
NOBLE, CJ
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (01) : 46 - 49
[19] Observation of an Exceptional Point in a Chaotic Optical Microcavity
Lee, Sang-Bum
Yang, Juhee
Moon, Songky
Lee, Soo-Young
Shim, Jeong-Bo
Kim, Sang Wook
Lee, Jai-Hyung
An, Kyungwon
[J]. PHYSICAL REVIEW LETTERS, 2009, 103 (13)
[20] Divergent Petermann factor of interacting resonances in a stadium-shaped microcavity
Lee, Soo-Young
Ryu, Jung-Wan
Shim, Jeong-Bo
Lee, Sang-Bum
Kim, Sang Wook
An, Kyungwon
[J]. PHYSICAL REVIEW A, 2008, 78 (01)

← 1 2 3 4 →