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35 papers · 2 filters
Emergent Weyl excitations in systems of polar particles
Sergey V. Syzranov, Michael L. Wall, Bihui Zhu +2
Weyl fermions are massless chiral particles first predicted in 1929 and once thought to describe neutrinos. Although never observed as elementary particles, quasiparticles with Wey…
Non-Markovian quantum friction of bright solitons in superfluids
Dmitry K. Efimkin, Johannes Hofmann, Victor Galitski
We explore the quantum dynamics of a bright matter-wave soliton in a quasi-one-dimensional bosonic superfluid with attractive interactions. Specifically, we focus on the dissipativ…
Doublon dynamics and polar molecule production in an optical lattice
Jacob P. Covey, Steven A. Moses, Martin Garttner +8
Ultracold polar molecules provide an excellent platform to study quantum many-body spin dynamics, which has become accessible in the recently realized low entropy quantum gas of po…
Exact calculation of phonon effects on spin squeezing
D. Dylewsky, J. K. Freericks, M. L. Wall +2
Theoretical models of spins coupled to bosons provide a simple setting for studying a broad range of important phenomena in many-body physics, from virtually mediated interactions…
Resonant wavepackets and shock waves in an atomtronic SQUID
Yi-Hsieh Wang, A. Kumar, F. Jendrzejewski +5
The fundamental dynamics of ultracold atomtronic devices are reflected in their phonon modes of excitation. We probe such a spectrum by applying a harmonically driven potential bar…
Continuous symmetry breaking and a new universality class in 1D long-range interacting quantum systems
Mohammad F. Maghrebi, Zhe-Xuan Gong, Alexey V. Gorshkov
Continuous symmetry breaking (CSB) in low-dimensional systems, forbidden by the Mermin-Wagner theorem for short-range interactions, may take place in the presence of slowly decayin…