Dipolar particles in a double-trap confinement: Response to tilting the dipolar orientation

TL;DR

This study investigates how tilting the dipole orientation in a double-trap system influences the localization and pairing of dipolar particles, revealing adiabatic and non-adiabatic effects on their quantum states.

Contribution

It demonstrates the control of localization and pairing in dipolar particles through orientation manipulation, introducing a few-body analog of the super-Tonks-Girardeau state.

Findings

Adiabatic tilt induces strong inter-trap pairing and localization.

Non-adiabatic tilt leads to highly excited, non-localized states.

Identification of a few-body super-Tonks-Girardeau analog.

Abstract

We analyze the microscopic few-body properties of dipolar particles confined in two parallel quasi-one-dimensional harmonic traps. In particular, we show that an adiabatic rotation of the dipole orientation about the trap axes can drive an initially non-localized few-fermion state into a localized state with strong inter-trap pairing. For an instant, non-adiabatic rotation, however, localization is inhibited and a highly excited state is reached. This state may be interpreted as the few-body analog of a super-Tonks-Girardeau state, known from one-dimensional systems with contact interactions.