Analog of photon-assisted tunneling in a Bose-Einstein condensate

TL;DR

This paper investigates photon-assisted tunneling analogs in a Bose-Einstein condensate within a modulated double-well potential, revealing interaction effects and Shapiro-like resonances through many-body tunneling analysis.

Contribution

It introduces the concept of photon-assisted tunneling analogs in BECs and demonstrates observable interaction signatures and resonances in a controlled experimental setup.

Findings

Observation of interaction-dependent particle transfer

Identification of half-integer Shapiro-like resonances

Demonstration of photon-assisted tunneling analog in BECs

Abstract

We study many-body tunneling of a small Bose-Einstein condensate in a periodically modulated, tilted double-well potential. Periodic modulation of the trapping potential leads to an analog of photon-assisted tunneling, with distinct signatures of the interparticle interaction visible in the amount of particles transferred from one well to the other. In particular, under experimentally accessible conditions there exist well-developed half-integer Shapiro-like resonances.