Hidden vortices and Feynman rule in Bose-Einstein condensates with density-dependent gauge potentialIn this article, we numerically investigate the vortex nucleation in a Bose-Einstein condensate trapped in a double-well potential and subjected to a density-dependent gauge potential. A rotating…Ishfaq Ahmad Bhat, Bishwajyoti Dey·Jul 25, 2024SaveLearn
Superfluidity and sound propagation in disordered Bose gasesSuperfluidity describes the ability of quantum matter to flow without friction. Due to its fundamental role in many transport phenomena, it is crucial to understand the robustness of superfluid…Kevin T. Geier, Jeff Maki, Alberto Biella et al.·Jul 24, 2024SaveLearn
Supersolidity and Simplex Phases in Spin-1 Rydberg Atom ArraysNeutral atoms become strongly interacting when their electrons are excited to loosely bound Rydberg states. We investigate the strongly correlated quantum phases of matter that emerge in…Vincent S. Liu, Marcus Bintz, Maxwell Block et al.·Jul 24, 2024SaveLearn
Massive-vortex realization of a Bosonic Josephson JunctionWe study the mass exchange between two rotating, quantum massive vortices in a two-component Bose-Einstein condensate. The vortices, in the majority component, exhibit a filled core, where the…Alice Bellettini, Andrea Richaud, Vittorio Penna·Jul 24, 2024SaveLearn
Phases and dynamics of quantum droplets in the crossover to two-dimensionsWe explore the ground states and dynamics of ultracold atomic droplets in the crossover region from three to two dimensions by solving the two-dimensional and the quasi two-dimensional extended…Jose Carlos Pelayo, George Bougas, Thomás Fogarty et al.·Jul 23, 2024SaveLearn
Tunable nonlinear Landau-Zener tunnelings in a spin-orbit-coupled spinor Bose-Einstein condensateNonlinear Landau-Zener tunneling is an important nonlinear phenomenon. We propose to stimulate the nonlinear tunneling in a spin-orbit-coupled spinor Bose-Einstein condensate. The system provides an…Zhiqian Gui, Jin Su, Hao Lyu et al.·Jul 23, 2024SaveLearn
Simulation of ultracold Bose gases with the complex Langevin methodThis PhD thesis gives a comprehensive treatment of ab initio lattice Monte Carlo simulations of ultracold Bose gases by means of the complex Langevin algorithm. Since the field-theoretic action of…Philipp Heinen·Jul 23, 2024SaveLearn
Necklace Ansatz for strongly repulsive spin mixtures on a ringWe propose an alternative to the Bethe Ansatz method for strongly-interacting fermionic (or bosonic) mixtures on a ring. Starting from the knowledge of the solution for single-component…Gianni Aupetit-Diallo, Giovanni Pecci, Artem Volosniev et al.·Jul 23, 2024SaveLearn
Topological floating phase of dipolar bosons in an optical ladderUltracold dipolar hard-core bosons in optical ladders provide exciting possibilities for the quantum simulation of anisotropic XXZ spin ladders. We show that introducing a tilt along the rungs…Henning Korbmacher, Gustavo A. Domínguez-Castro, Mateusz Łącki et al.·Jul 22, 2024SaveLearn
Ground state of a mixture of SU(3) fermions and scalar bosonsWe explore a system composed of scalar bosons and SU(3) fermions in one dimension. Considering only local intra- and interspecies interactions, the system is described by the Bose-Fermi-Hubbard…J. Silva-Valencia, J. J. Mendoza-Arenas·Jul 22, 2024SaveLearn
Geometric phase and multipartite entanglement of Rydberg atom chainsWe investigate the behavior of geometric phase (GP) and geometric entanglement (GE), a multipartite entanglement measure, across quantum phase transitions in Rydberg atom chains. Using density matrix…Chang-Yan Wang·Jul 20, 2024SaveLearn
Dynamical Transition of Quantum Vortex-Pair Annihilation in a Bose-Einstein CondensateUnderstanding the elementary mechanism for the dissipation of vortex energy in quantum liquids is one central issue in quantum hydrodynamics, such as quantum turbulence in systems ranging from…Toshiaki Kanai, Chuanwei Zhang·Jul 19, 2024SaveLearn
Simulations of evaporation to deep Fermi degeneracy in microwave-shielded moleculesIn the quest toward realizing novel quantum matter in ultracold molecular gases, we perform a numerical study of evaporative cooling in ultracold gases of microwave-shielded polar fermionic…Reuben R. W. Wang, Shrestha Biswas, Sebastian Eppelt et al.·Jul 19, 2024SaveLearn
Time-dependent condensate formation in ultracold atoms with energy-dependent transport coefficientsTime-dependent Bose-Einstein condensate (BEC) formation in ultracold atoms is investigated in a nonlinear diffusion model. For constant transport coefficients, the model has been solved analytically.…M. Larsson, G. Wolschin·Jul 19, 2024SaveLearn
Interaction effects on the itinerant ferromagnetism phase transitionItinerant ferromagnetism is one of the most studied quantum phase transitions, the transition point and the nature of this phase transition being widely discussed. In dilute Fermi liquids, this…Jordi Pera, Joaquim Casulleras, Jordi Boronat·Jul 19, 2024SaveLearn
Bardeen-Cooper-Schrieffer State Representation and Pairing in the Fermionic Tonks-Girardeau GasWe introduce an alternative expression for the ground state wave function of the fermionic Tonks-Girardeau gas. Our wave function is constructed based on the occupation numbers and natural orbitals…Francesc Sabater, Abel Rojo-Francàs, Grigori E. Astrakharchik et al.·Jul 18, 2024SaveLearn
Emergence of Sound in a Tunable Fermi FluidLandau's Fermi-liquid (FL) theory has been successful at the phenomenological description of the normal phase of many different Fermi systems. Using a dilute atomic Fermi fluid with tunable…Songtao Huang, Yunpeng Ji, Thomas Repplinger et al.·Jul 18, 2024SaveLearn
Apparatus for Optical-Atomic System Integration & Calibration: 1 atm to 1×10-11 Torr in 24hUltracold atoms exquisitely controlled by lasers are the quantum foundation, particularly for sensing, timekeeping, and computing, of state-of-the-art quantum science and technology. However, the…G. Kestler, K. Ton, J. T. Barreiro·Jul 18, 2024SaveLearn
Supersolidity in Rydberg tweezer arraysRydberg tweezer arrays provide a versatile platform to explore quantum magnets with dipolar XY or van-der-Waals Ising ZZ interactions. Here, we propose a scheme combining dipolar and van-der-Waals…Lukas Homeier, Simon Hollerith, Sebastian Geier et al.·Jul 17, 2024SaveLearn
Hybridization of the amplitude mode in a confined fermionic superfluidIn phase transitions, spontaneous symmetry breaking results in a non-zero order parameter and two collective excitations: the Goldstone and the amplitude mode. These modes, which define key…Cesar R. Cabrera, René Henke, Lukas Broers et al.·Jul 17, 2024SaveLearn
BCS-BEC crossover of the strongly interacting 6Li-40K mixtureWe present Quantum Monte Carlo calculations of the properties of a two-component mass imbalanced Fermi gas, corresponding to the 6Li-40K mixture. We compute the equation of state of the…Stefano Gandolfi, Ryan Curry, Alexandros Gezerlis·Jul 16, 2024SaveLearn
Thermodynamics and density fluctuations in a bilayer Hubbard system of ultracold atomsWe measure the equation of state in a bilayer Hubbard system for different ratios of the two tunnelling amplitudes t /t. From the equation of state we deduce the compressibility and observe…J. Samland, N. Wurz, M. Gall et al.·Jul 16, 2024SaveLearn
Observation of Relaxation Stages in a Nonequilibrium Closed Quantum System: Decaying Turbulence in a Trapped SuperfluidThe dynamics of non-equilibrium closed quantum systems and their route to thermalization are of fundamental interest to several fields, from cosmology to particle physics. However, a comprehensive…M. A. Moreno-Armijos, A. R. Fritsch, A. D. García-Orozco et al.·Jul 15, 2024SaveLearn
Controllable interatomic interaction mediated by diffractive coupling in a cavityPhoton-mediated interaction can be used for simulating complex many-body phenomena with ultracold atoms coupled to electromagnetic modes of an optical resonator. We theoretically study a method of…Ivor Krešić·Jul 15, 2024SaveLearn
Coherence of a non-equilibrium polariton condensate across the interaction-mediated phase transitionThe emergence of spatial coherence in a confined two-dimensional Bose gas of exciton-polaritons with tuneable interactions offers a unique opportunity to explore the role of interactions in a phase…P. Comaron, E. Estrecho, M. Wurdack et al.·Jul 15, 2024SaveLearn