3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Maryland, College ParkUS1.9k papers
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21 papers · 2 filters
Dark state optical lattice with sub-wavelength spatial structure
Yang Wang, Sarthak Subhankar, Przemyslaw Bienias +7
We report on the experimental realization of a conservative optical lattice for cold atoms with sub-wavelength spatial structure. The potential is based on the nonlinear optical re…
Spin-orbit coupled bosons in one dimension: emergent gauge field and Lifshitz transition
William S. Cole, Junhyun Lee, Khan W. Mahmud +3
In the presence of strong spin-independent interactions and spin-orbit coupling, we show that the spinor Bose liquid confined to one spatial dimension undergoes an interaction- or…
Absence of Thermalization in Finite Isolated Interacting Floquet Systems
Karthik I. Seetharam, Paraj Titum, Michael Kolodrubetz +1
Conventional wisdom suggests that the long time behavior of isolated interacting periodically driven (Floquet) systems is a featureless maximal entropy state characterized by an in…
A rapidly expanding Bose-Einstein condensate: an expanding universe in the lab
S. Eckel, A. Kumar, T. Jacobson +2
We study the dynamics of a supersonically expanding ring-shaped Bose-Einstein condensate both experimentally and theoretically. The expansion redshifts long-wavelength excitations,…
Viscosity of a Multi-channel One-Dimensional Fermi Gas
Wade DeGottardi, K. A. Matveev
Many one-dimensional systems of experimental interest possess multiple bands arising from shallow confining potentials. In this work, we study a gas of weakly interacting fermions…
Exploring the Single-Particle Mobility Edge in a One-Dimensional Quasiperiodic Optical Lattice
Henrik P. Lüschen, Sebastian Scherg, Thomas Kohlert +5
A single-particle mobility edge (SPME) marks a critical energy separating extended from localized states in a quantum system. In one-dimensional systems with uncorrelated disorder,…
Quantum Phases of Two-Component Bosons with Spin-Orbit Coupling in Optical Lattices
Daisuke Yamamoto, I. B. Spielman, C. A. R. Sá de Melo
Ultracold bosons in optical lattices are one of the few systems where bosonic matter is known to exhibit strong correlations. Here we push the frontier of our understanding of inte…
Synthetic clock transitions via continuous dynamical decoupling
D. Trypogeorgos, A. Valdés-Curiel, N. Lundblad +1
Decoherence of quantum systems due to uncontrolled fluctuations of the environment presents fundamental obstacles in quantum science. `Clock' transitions which are insensitive to s…
Enhancing quantum order with fermions by increasing species degeneracy
Khadijeh Najafi, M. M. Maśka, Kahlil Dixon +2
One of the challenges for fermionic cold atom experiments in optical lattices is to cool the systems to low enough temperature that they can form quantum degenerate ordered phases.…
Ultracold atoms in multiple-radiofrequency dressed adiabatic potentials
Tiffany Laura Harte, Elliot Bentine, Kathrin Luksch +4
We present the first experimental demonstration of a multiple-radiofrequency dressed potential for the configurable magnetic confinement of ultracold atoms. We load cold Rb…
Phase-space mixing in dynamically unstable, integrable few-mode quantum systems
Ranchu Mathew, Eite Tiesinga
Quenches in isolated quantum systems are currently a subject of intense study. Here, we consider quantum few-mode systems that are integrable in their classical mean-field limit an…
Topological lattice using multi-frequency radiation
Tomas Andrijauskas, Ian B. Spielman, Gediminas Juzeliunas
We describe a novel technique for creating an artificial magnetic field for ultra-cold atoms using a periodically pulsed pair of counter propagating Raman lasers that drive transit…
Strong coupling phases of the spin-orbit-coupled spin-1 Bose-Hubbard chain: odd integer Mott lobes and helical magnetic phases
J. H. Pixley, William S. Cole, I. B. Spielman +2
We study the odd integer filled Mott phases of a spin-1 Bose-Hubbard chain and determine their fate in the presence of a Raman induced spin-orbit coupling which has been achieved i…
Induced density correlations in a sonic black hole condensate
Yi-Hsieh Wang, Ted Jacobson, Mark Edwards +1
Analog black/white hole pairs, consisting of a region of supersonic flow, have been achieved in a recent experiment by J. Steinhauer using an elongated Bose-Einstein condensate. A…
Above threshold scattering about a Feshbach resonance for ultracold atoms in an optical collider
Milena S. J. Horvath, Ryan Thomas, Eite Tiesinga +2
Ultracold atomic gases have realised numerous paradigms of condensed matter physics where control over interactions has crucially been afforded by tunable Feshbach resonances. So f…
Ultracold atoms in quasi-1D traps: a step beyond the Lieb-Liniger model
Krzysztof Jachymski, Florian Meinert, Hagar Veksler +2
Ultracold atoms placed in a tight cigar-shaped trap are usually described in terms of the Lieb-Liniger model. We study the extensions of this model which arise when van der Waals i…
Kinetic theory of dark solitons with tunable friction
Hilary M. Hurst, Dmitry K. Efimkin, I. B. Spielman +1
We study controllable friction in a system consisting of a dark soliton in a one-dimensional Bose-Einstein condensate coupled to a non-interacting Fermi gas. The fermions act as im…
Universal many-body response of heavy impurities coupled to a Fermi sea
Richard Schmidt, Michael Knap, Dmitri A. Ivanov +3
In this work we discuss the dynamical response of heavy quantum impurities immersed in a Fermi gas at zero and at finite temperature. Studying both the frequency and the time domai…
Dispersive optical detection of magnetic Feshbach resonances in ultracold gases
Bianca J. Sawyer, Milena S. J. Horvath, Eite Tiesinga +2
Magnetically tunable Feshbach resonances in ultracold atomic systems are chiefly identified and characterized through time consuming atom loss spectroscopy. We describe an off-reso…
Chiral Spin Condensation in a One-Dimensional Optical Lattice
Ying-Hai Wu, Xiaopeng Li, S. Das Sarma
We study a spinor (two-component) Bose gas confined in a one-dimensional double-valley optical lattice which has a double-well structure in momentum space. Based on field theory an…
Investigation of Feshbach Resonances in ultra-cold 40 K spin mixtures
Jasper S. Krauser, Jannes Heinze, S. Götze +7
Magnetically-tunable Feshbach resonances are an indispensable tool for experiments with atomic quantum gases. We report on twenty thus far unpublished Feshbach resonances and twent…