title: Superradiance lattice.
abstract: We show that the timed Dicke states of a collection of three-level atoms can form a tight-binding lattice in momentum space. This lattice, coined the superradiance lattice (SL), can be constructed based on electromagnetically induced transparency (EIT). For a one-dimensional SL, we need the coupling field of the EIT system to be a standing wave. The detuning between the two components of the standing wave introduces an effective uniform force in momentum space. The quantum lattice dynamics, such as Bloch oscillations, Wannier-Stark ladders, Bloch band collapsing, and dynamic localization can be observed in the SL. The two-dimensional SL provides a flexible platform for Dirac physics in graphene. The SL can be extended to three and higher dimensions where no analogous real space lattices exist with new physics waiting to be explored.
authors: Texas A&M University, College Station, Texas 77843, USA and Department of Physics and Centre for Quantum Coherence, The Chinese University of Hong Kong, Hong Kong, China.
authors: Da-Wei
authors: DW
authors: Wang
authors: Department of Physics and Centre for Quantum Coherence, The Chinese University of Hong Kong, Hong Kong, China.
authors: Ren-Bao
authors: RB
authors: Liu
authors: Department of Physics and Centre for Quantum Coherence, The Chinese University of Hong Kong, Hong Kong, China and Beijing Computational Science Research Centre, Beijing 100084, China.
authors: Shi-Yao
authors: SY
authors: Zhu
authors: Texas A&M University, College Station, Texas 77843, USA and Princeton University, Princeton, New Jersey 08544, USA and Baylor University, Waco, Texas 76706, USA.
authors: Marlan O
authors: MO
authors: Scully