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301
Reinforcement-learning-based matter-wave interferometer in a shaken optical lattice
Published 2021-09-01“…The system we base this on consists of ultracold atoms in an optical lattice potential created by interfering laser beams. …”
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302
Extracting the quantum geometric tensor of an optical Raman lattice by Bloch-state tomography
Published 2023-08-01“…Here, we experimentally realize a complete Bloch-state tomography to directly measure the eigenfunction of an optical Raman lattice for ultracold atoms. Through the measured eigenfunction, the distribution of the complete QGT in the Brillouin zone is reconstructed, with which the topological invariants are extracted by the Berry curvature and the distances of quantum states in momentum space are measured by the quantum metric tensor. …”
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303
Many-body correlations in one-dimensional optical lattices with alkaline-earth(-like) atoms
Published 2023-06-01“…Abstract We explore the rich nature of correlations in the ground state of ultracold atoms trapped in state-dependent optical lattices. …”
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304
Kibble-Zurek dynamics in a trapped ultracold Bose gas
Published 2020-08-01“…The dynamical evolution of an inhomogeneous ultracold atomic gas quenched at different controllable rates through the Bose-Einstein condensation phase transition is studied numerically in the premise of a recent experiment in an anisotropic harmonic trap. …”
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305
Fractionalized topological defects in optical lattices
Published 2015-01-01“…Topological objects are interesting topics in various fields of physics ranging from condensed matter physics to the grand unified and superstring theories. Among those, ultracold atoms provide a playground to study the complex topological objects. …”
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306
Self-bound Bose–Fermi liquids in lower dimensions
Published 2019-01-01“…We study weakly interacting mixtures of ultracold atoms composed of bosonic and fermionic species in 2D and 1D. …”
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307
Floquet spinor Bose gases
Published 2019-11-01“…By examining a spin-1 system available in ultracold atomic gases, we demonstrate that such an external driving field has great effect on the condensate through emergence of a unique spin-exchange interaction. …”
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308
Synthetic gauge fields in synthetic dimensions: interactions and chiral edge modes
Published 2016-01-01“…Synthetic ladders realized with one-dimensional alkaline-earth(-like) fermionic gases and subject to a gauge field represent a promising environment for the investigation of quantum Hall physics with ultracold atoms. Using density-matrix renormalization group calculations, we study how the quantum Hall-like chiral edge currents are affected by repulsive atom–atom interactions. …”
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309
Making molecules by mergoassociation: Two atoms in adjacent nonspherical optical traps
Published 2023-10-01“…Mergoassociation of two ultracold atoms to form a weakly bound molecule can occur when two optical traps that each contain a single atom are merged. …”
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310
Controlling Directionality and Dimensionality of Radiation by Perturbing Separable Bound States in the Continuum
Published 2017“…Using this general framework, we construct new examples of separable BICs and resonances that can exist in optical potentials for ultracold atoms, photonic systems, and systems described by tight binding. …”
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311
Scattering in Mixed Dimensions with Ultracold Gases
Published 2010“…We employ a binary mixture of ultracold atoms and exploit a species-selective 1D optical lattice to confine only one atomic species in 2D. …”
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312
Weyl Points in Three-Dimensional Optical Lattices: Synthetic Magnetic Monopoles in Momentum Space
Published 2015“…We show that a Hamiltonian with Weyl points can be realized for ultracold atoms using laser-assisted tunneling in three-dimensional optical lattices. …”
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313
Design of an experimental platform for hybridization of atomic and superconducting quantum systems
Published 2019“…We demonstrate an experimental setup for transferring and trapping ultracold atoms inside a millikelvin cryogenic environment, where interactions between atomic and superconducting qubits may be established, paving the way for hybrid quantum systems. …”
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314
Natural mode entanglement as a resource for quantum communication.
Published 2009“…Natural particle-number entanglement resides between spatial modes in coherent ultracold atomic gases. However, operations on the modes are restricted by a superselection rule that forbids coherent superpositions of different particle numbers. …”
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315
Towards a quantum fluid theory of correlated many-fermion systems from first principles
Published 2022“…Correlated many-fermion systems emerge in a broad range of phenomena in warm dense matter, plasmonics, and ultracold atoms. Quantum hydrodynamics (QHD) complements first-principles methods for many-fermion systems at larger scales. …”
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316
Design of an experimental platform for hybridization of atomic and superconducting quantum systems
Published 2019“…We demonstrate an experimental setup for transferring and trapping ultracold atoms inside a millikelvin cryogenic environment, where interactions between atomic and superconducting qubits may be established, paving the way for hybrid quantum systems. …”
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317
Homogeneous Atomic Fermi Gases
Published 2017“…We report on the creation of homogeneous Fermi gases of ultracold atoms in a uniform potential. In the momentum distribution of a spin-polarized gas, we observe the emergence of the Fermi surface and the saturated occupation of one particle per momentum state: the striking consequence of Pauli blocking in momentum space for a degenerate gas. …”
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318
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Simulations of systems of cold Rydberg atoms
Published 2012“…Rydberg atoms consequently find many interesting applications within ultracold atomic physics.</p> <p>We begin this thesis by analysing the way in which a rubidium atom prepared in an excited Rydberg state decays to the ground state. …”
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320
Continuous formation of vibronic ground state RbCs molecules via photoassociation
Published 2014-01-01“…We demonstrate the direct formation of vibronic ground state RbCs molecules by photoassociation of ultracold atoms followed by radiative stabilization. The photoassociation proceeds through deeply bound levels of the (2) ^3 Π _0 ^+_+ state. …”
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