Quantum atomic and molecular gases are flexible systems for studies of fundamental many-
body physics. They have traditionally been produced in harmonic electromagnetic traps and …

Applications of quantum technology often require fidelities to quantify performance. These
provide a fundamental yardstick for the comparison of two quantum states. While this is …

Metastability stems from the finite lifetime of a state when a lower-energy configuration is
available but only by tunnelling through an energy barrier. It is observed in many natural …

A bstract We present a Python package BubbleDet for computing one-loop functional
determinants around spherically symmetric background fields. This gives the next-to-leading …

Discontinuous (first-order) quantum phase transitions and the associated metastability play
central roles in diverse areas of physics, ranging from ferromagnetism to the false-vacuum …

We propose experimentally feasible means for nondestructive thermometry of
homogeneous Bose-Einstein condensates in different spatial dimensions (d∈{1, 2, 3}). Our …

Recently the thermal friction on an expanding bubble from the cosmic first-order phase
transition has been calculated to all orders of the interactions between the bubble wall and …

Ultracold atomic gases can undergo phase transitions that mimic relativistic vacuum decay,
allowing us to empirically test early Universe physics in tabletop experiments. We …

We design and implement a quantum annealing simulation platform to observe and study
dynamical processes in quantum field theory (QFT). Our approach encodes the field theory …

Despite being at the heart of the theory of the “Big Bang” and cosmic inflation, the quantum-
field-theory prediction of false vacuum tunneling has not been tested. To address the …