Exciton dynamics in emergent Rydberg lattices

被引：37

作者：

Bettelli, S. ^{[1
]}

Maxwell, D. ^{[2
]}

Fernholz, T. ^{[1
]}

Adams, C. S. ^{[2
]}

Lesanovsky, I. ^{[1
]}

Ates, C. ^{[1
]}

机构：

[1] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[2] Univ Durham, Dept Phys, Joint Quantum Ctr JQC Durham Newcastle, Durham DH1 3LE, England

来源：

PHYSICAL REVIEW A | 2013年 / 88卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

ENERGY-TRANSFER; RELAXATION;

D O I：

10.1103/PhysRevA.88.043436

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dynamics of excitons in a one-dimensional ensemble with partial spatial order are studied. During optical excitation, cold Rydberg atoms spontaneously organize into regular spatial arrangements due to their mutual interactions. This emergent lattice is used as the starting point to study resonant energy transfer triggered by driving a nS to n'P transition using a microwave field. The dynamics are probed by detecting the survival probability of atoms in the nS Rydberg state. Experimental data qualitatively agree with our theoretical predictions including the mapping onto the XXZ spin model in the strong-driving limit. Our results suggest that emergent Rydberg lattices provide an ideal platform to study coherent energy transfer in structured media without the need for externally imposed potentials.

引用

页数：6

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