Parity-Induced Thermalization Gap in Disordered Ring Lattices

Wang, Yao1,2,3,4; Gao, Jun1,2,3,4; Pang, xiao-Ling1,4; Jiao, Zhi-Qiang1,4; Tang, Hao1,4,5; Chen, Yuan1,2,3,4; Qiao, Lu-Feng1,4; Gao, Zhen-Wei1,4; Dou, Jian-Peng1,4; Yang, Ai-Lin1,4; Jin, Xian-Min1,4,5

2019-01-08

10.1103/PhysRevLett.122.013903

PHYSICAL REVIEW LETTERS   影响因子和分区

0031-9007

1079-7114

The gaps separating two different states widely exist in various physical systems: from the electrons in periodic lattices to the analogs in photonic, phononic, plasmonic systems, and even quasicrystals. Recently, a thermalization gap, an inaccessible range of photon statistics, was proposed for light in disordered structures Mat. Phys. 11, 930 (2015)], which is intrinsically induced by the disorder-immune chiral symmetry and can be reflected by the photon statistics. The lattice topology was further identified as a decisive role in determining the photon statistics when the chiral symmetry is satisfied. Being very distinct from one-dimensional lattices, the photon statistics in ring lattices are dictated by its parity, i.e., odd or even sited. Here, we for the first time experimentally observe a parity-induced thermalization gap in strongly disordered ring photonic structures. In a limited scale, though the light tends to be localized, we are still able to find clear evidence of the parity-dependent disorder-immune chiral symmetry and the resulting thermalization gap by measuring photon statistics, while strong disorder-induced Anderson localization overwhelms such a phenomenon in larger-scale structures. Our results shed new light on the relation among symmetry, disorder, and localization, and may inspire new resources and artificial devices for information processing and quantum control on a photonic chip.

SCI ; EI

英语

其他

Shanghai Municipal Education Commission (SMEC)[16SG09] ; Shanghai Municipal Education Commission (SMEC)[2017-01-07-00-02-E00049]

Physics

Physics, Multidisciplinary

WOS:000455164600007

AMER PHYSICAL SOC

20190306370994

Photons ; Plasmonics

Mathematical Statistics:922.2 ; Atomic and Molecular Physics:931.3

PHYSICS

Web of Science

1.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China
2.Southern Univ Sci & Technol, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
4.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China
5.Shanghai Jiao Tong Univ, Inst Nat Sci, Shanghai 200240, Peoples R China

Wang, Yao,Gao, Jun,Pang, xiao-Ling,et al. Parity-Induced Thermalization Gap in Disordered Ring Lattices[J]. PHYSICAL REVIEW LETTERS,2019,122(1).

Wang, Yao.,Gao, Jun.,Pang, xiao-Ling.,Jiao, Zhi-Qiang.,Tang, Hao.,...&Jin, Xian-Min.(2019).Parity-Induced Thermalization Gap in Disordered Ring Lattices.PHYSICAL REVIEW LETTERS,122(1).

Wang, Yao,et al."Parity-Induced Thermalization Gap in Disordered Ring Lattices".PHYSICAL REVIEW LETTERS 122.1(2019).