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115 papers · 1 filter
Intermittency of Energy Dissipation in Alfvenic Turbulence
Vladimir Zhdankin, Stanislav Boldyrev, Christopher H. K. Chen
We investigate the intermittency of energy dissipation in Alfvenic turbulence by considering the statistics of the coarse-grained energy dissipation rate, using direct measurements…
Ultracold nonreactive molecules in an optical lattice: connecting chemistry to many-body physics
Andris Doçaj, Michael L. Wall, Rick Mukherjee +1
We derive effective lattice models for ultracold bosonic or fermionic nonreactive molecules (NRMs) in an optical lattice, analogous to the Hubbard model that describes ultracold at…
Principles of an atomtronic transistor
Seth C. Caliga, Cameron J. E. Straatsma, Alex A. Zozulya +1
A semiclassical formalism is used to investigate the transistor-like behavior of ultracold atoms in a triple-well potential. Atom current flows from the source well, held at fixed…
Supercooling of Atoms in an Optical Resonator
Minghui Xu, Simon B. Jäger, S. Schütz +3
We investigate laser cooling of an ensemble of atoms in an optical cavity. We demonstrate that when atomic dipoles are sychronized in the regime of steady-state superradiance, the…
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…
A nanofocused plasmon-driven sub-10 femtosecond electron point source
Melanie Müller, Vasily Kravtsov, Alexander Paarmann +2
Progress in ultrafast electron microscopy relies on the development of efficient laser-driven electron sources delivering femtosecond electron pulses to the sample. In particular,…