ITP OpenIR  > SCI期刊论文
Ashida, Yuto1; Shi, Tao2; Schmidt, Richard; Sadeghpour, H. R.; Cirac, J. Ignacio; Demler, Eugene6
Quantum Rydberg Central Spin Model
AbstractWe consider dynamics of a Rydberg impurity in a cloud of ultracold bosonic atoms in which the Rydberg electron undergoes spin-changing collisions with surrounding atoms. This system realizes a new type of quantum impurity problems that compounds essential features of the Kondo model, the Bose polaron, and the central spin model. To capture the interplay of the Rydberg-electron spin dynamics and the orbital motion of atoms, we employ a new variational method that combines an impurity-decoupling transformation with a Gaussian ansatz for the bath particles. We find several unexpected features of this model that are not present in traditional impurity problems, including interaction-induced renormalization of the absorption spectrum that eludes simple explanations from molecular bound states, and long-lasting oscillations of the Rydberg-electron spin. We discuss generalizations of our analysis to other systems in atomic physics and quantum chemistry, where an electron excitation of high orbital quantum number interacts with a spinful quantum bath.
Cooperation Status国际
Subject AreaPhysics
MOST Discipline CataloguePhysics, Multidisciplinary
Indexed BySCIE
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Univ Tokyo, Dept Appl Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan
2.Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
3.Chinese Acad Sci, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
4.Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany
5.MCQST, Schellingstr 4, D-80799 Munich, Germany
6.Sadeghpour, H. R.] Harvard Smithsonian Ctr Astrophys, ITAMP, Cambridge, MA 02138 USA
7.Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
Recommended Citation
GB/T 7714
Ashida, Yuto,Shi, Tao,Schmidt, Richard,et al. Quantum Rydberg Central Spin Model[J]. PHYSICAL REVIEW LETTERS,2019,123(18):183001.
APA Ashida, Yuto,Shi, Tao,Schmidt, Richard,Sadeghpour, H. R.,Cirac, J. Ignacio,&Demler, Eugene.(2019).Quantum Rydberg Central Spin Model.PHYSICAL REVIEW LETTERS,123(18),183001.
MLA Ashida, Yuto,et al."Quantum Rydberg Central Spin Model".PHYSICAL REVIEW LETTERS 123.18(2019):183001.
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