Cardenas-Lopez Silvia, Masson Stuart J, Zager Zoe, Asenjo-Garcia Ana
Department of Physics, Columbia University, New York, New York 10027, USA.
Phys Rev Lett. 2023 Jul 21;131(3):033605. doi: 10.1103/PhysRevLett.131.033605.
The many-body decay of extended collections of two-level systems remains an open problem. Here, we investigate whether an array of emitters coupled to a one-dimensional bath undergoes Dicke superradiance. This is a process whereby a completely inverted system becomes correlated via dissipation, leading to the release of all the energy in the form of a rapid photon burst. We derive the minimal conditions for the burst to happen as a function of the number of emitters, the chirality of the waveguide, and the single-emitter optical depth, both for ordered and disordered ensembles. Many-body superradiance occurs because the initial fluctuation that triggers the emission is amplified throughout the decay process. In one-dimensional baths, this avalanchelike behavior leads to a spontaneous mirror symmetry breaking, with large shot-to-shot fluctuations in the number of photons emitted to the left and right. Superradiant bursts may thus be a smoking gun for the generation of correlated photon states of exotic quantum statistics.
两能级系统扩展集合的多体衰变仍然是一个未解决的问题。在这里，我们研究与一维浴耦合的发射体阵列是否会经历迪克超辐射。这是一个完全反转的系统通过耗散变得相关的过程，导致所有能量以快速光子爆发的形式释放。我们推导了对于有序和无序系综，爆发发生的最小条件，该条件是发射体数量、波导手性和单发射体光学深度的函数。多体超辐射的发生是因为触发发射的初始涨落在整个衰变过程中被放大。在一维浴中，这种雪崩式行为导致自发的镜像对称破缺，向左和向右发射的光子数量存在很大的逐次涨落。因此，超辐射爆发可能是产生具有奇异量子统计的相关光子态的有力证据。
