Bloch oscillations of Path-Entangled Photons

TL;DR

This paper demonstrates that N-particle path-entangled photons exhibit periodic spatial bunching and antibunching during Bloch oscillations, with the transition period inversely proportional to the number of particles, revealing quantum many-body effects.

Contribution

It introduces the study of Bloch oscillations in N-particle path-entangled photon states and analyzes their spatial correlation dynamics.

Findings

Periodic transition between bunched and antibunched states during oscillations

Transition period scales as 1/N with the number of photons

Photon states remain spatially separated during transitions

Abstract

We show that when photons in N-particle path entangled |N,0> + |0,N> state undergo Bloch oscillations, they exhibit a periodic transition between spatially bunched and antibunched states. The transition occurs even when the photons are well separated in space. We study the scaling of the bunching-antibunching period, and show it is proportional to 1/N.