Symmetry protected single photon subradiance

Abstract

We study the protection of subradiant states by the symmetry of the atomic distributions in the Dicke limit, in which collective Lamb shifts cannot be neglected. We find that anti-symmetric states are subradiant states for distributions with reflection symmetry. Continuous symmetry can also be used to achieve subradiance. This study is relevant to the problem of robust quantum memory with long storage time and fast readout.

6 pages, 5 figures

References in corpus (7)

• Generation of Nonclassical Photon Pairs for Scalable Quantum Communication with Atomic Ensembles
• Single Photon Subradiance: Quantum control of spontaneous emission and ultrafast readout
• Photon localization and Dicke superradiance in atomic gases
• Cooperative Spontaneous Emission as a Many Body Eigenvalue Problem
• Cooperativity in light scattering by cold atoms
• Superradiance Lattice
• Effect of atomic distribution on cooperative spontaneous emission

Cited by in corpus (10)

• Open quantum systems with local and collective incoherent processes: Efficient numerical simulation using permutational invariance
• Subradiance and superradiance-to-subradiance transition in dilute atomic clouds
• Bound state in the continuum by spatially separated ensembles of atoms in a coupled-cavity array
• Decay dynamics in the coupled-dipole model
• The field-induced interaction between non-resonant magnetic dipoles
• Quantum Engineering of Superdark Excited States in Arrays of Atoms
• Nanoscopy of pairs of atoms by fluorescence in a magnetic field
• Single Photon Superradiance and Subradiance as Collective Emission From Symmetric and Antisymmetric States
• Magnetic dipole-dipole interaction induced by the electromagnetic field
• Optimal storage time for $N$ qubits coupled to a one-dimensional waveguide