cond-mat.quant-gas papers

Quasi-one-dimensional soliton in a self-repulsive spin-orbit-coupled dipolar spin-half and spin-one condensates

This study investigates the formation and stability of various quasi-one-dimensional solitons in self-repulsive spin-orbit-coupled dipolar Bose-Einstein condensates, revealing that the interplay between spin-orbit coupling strength and interaction parameters dictates the emergence of distinct soliton types (such as bright-bright, dark-bright, and their modulated variants) in both pseudo spin-half and spin-one systems, all of which are demonstrated to be dynamically stable.

S. K. AdhikariWed, 11 Ma🔬 cond-mat

Stability of flat-band Bose-Einstein condensation from the geometry of compact localized states

This paper reformulates the stability of flat-band Bose-Einstein condensation as a Euclidean geometry problem using compact localized states, demonstrating that triangular frameworks with nonzero area support condensation while square frameworks do not, thereby offering new design principles for stable flat-band condensates.

Kukka-Emilia HuhtinenWed, 11 Ma🔬 cond-mat

Reproducible nucleation and control of stable quantum vortex rings in Bose-Einstein condensates

This paper proposes and numerically validates an experimentally feasible protocol for the deterministic nucleation and manipulation of stable quantum vortex rings in Bose-Einstein condensates using a sweeping laser-sheet barrier, enabling precise control over their properties and the generation of Kelvin-wave excitations for the study of three-dimensional vortices and quantum turbulence.

Giorgia Iori, Klejdja Xhani, Woo Jin Kwon, Davide Emilio Galli, Luca GalantucciWed, 11 Ma🔬 cond-mat

Exact Density Profiles of 1D Quantum Fluids in the Thomas-Fermi Limit: Geometric Hierarchy to the Tonks-Girardeau Gas

This paper introduces a geometric framework based on the $q$ -logarithm linearization principle that unifies the density profiles of 1D quantum fluids across interaction regimes—from the ideal Bose gas to the Tonks-Girardeau gas—within a discrete hierarchy and derives a universal sound velocity scaling law linking static geometry to dynamical excitations.

Hiroki SuyariWed, 11 Ma🔢 math-ph

Temporal Berry Phase and the Emergence of Bose-Glass-Analog Phase in a Clean U(1) Superfluid

This paper demonstrates that a temporal Berry phase in a clean U(1) nonlinear sigma model induces space-time anisotropic vortex interference, leading to a quasi-disordered phase with short-range spatial order and persistent temporal coherence that shares the essential correlation properties of the disordered Bose Glass phase, thereby suggesting a unified topological origin for glassy behavior in phase-fluctuation-driven superfluid transitions.

Ryuichi Shindou, Pengwei Zhao, Xiaonuo FangWed, 11 Ma🔬 cond-mat

Equilibrium Partition Function of Non-Relativistic CFTs in Harmonic Trap

This paper investigates the equilibrium partition function of non-relativistic conformal field theories in harmonic traps, revealing that the logarithm of the partition function exhibits universal simple poles in the difference between the squared trapping frequency and squared angular velocities, with residues determined by the equation of state in the hydrodynamic regime and by specific thermodynamic variables in the large-angular-momentum limit.

Eunwoo LeeWed, 11 Ma⚛️ hep-th

Breathing and Fission of Magnetic Multi-Solitons

This paper reports the deterministic experimental realization of breathing magnetic multi-solitons in a two-component Bose gas and demonstrates their controlled fission into fundamental constituents via a localized perturbation, effectively serving as an experimental analog of the inverse scattering transform.

G. Brochier, Y. Li, S. Wattellier, S. Philips, F. Rabec, S. Nascimbene, J. Dalibard, J. BeugnonWed, 11 Ma🌀 nlin

Interplay of local and global quantum geometry in the stability of flat-band superfluids

This paper demonstrates that the stability of flat-band superfluidity in two-dimensional systems depends critically on the specific distribution of the quantum metric within the Brillouin zone rather than just its integrated value, revealing that at least three bands are required for stable condensation and that the superfluid weight is significantly influenced by the condensate quantum metric.

Kukka-Emilia Huhtinen, Matteo Dürrnagel, Valerio Peri, Sebastian D. HuberWed, 11 Ma🔬 cond-mat

Nonthermal Dynamics and Scar-Like Spectral Structures in a High-Spin Fermi Gas

Using time-dependent Hartree-Fock simulations, this study reveals that a harmonically trapped spin-3/2 Fermi gas exhibits weak ergodicity breaking and long-lived coherent oscillations driven by a quasi-regular, spectrally stable manifold rather than conventional eigenstate-dominated quantum scars.

Shuyi Li, Qiang GuWed, 11 Ma⚛️ quant-ph

Universal Family-Vicsek scaling in quantum gases far from equilibrium

This paper experimentally demonstrates that the universal Family-Vicsek scaling laws, originally established for classical surface growth, also govern the non-equilibrium dynamics of quantum fluctuations in a one-dimensional Bose gas, thereby unifying the understanding of universality across classical and quantum systems.

Kiryang Kwon, Kazuya Fujimoto, Junhyeok Hur, Byungjin Lee, Samgyu Hwang, Sumin Kim, Ryusuke Hamazaki, Yuki Kawaguchi, Jae-yoon ChoiWed, 11 Ma⚛️ quant-ph

Quantum Simulation of Massive Relativistic Fields in 2 + 1 Dimensions

This paper reports the quantum simulation of massive relativistic fields in 2+1 dimensions using a two-component Bose-Einstein condensate to encode the sine-Gordon model, successfully demonstrating both tunable relativistic dispersion in the perturbative regime and non-perturbative topological domain walls.

Yansheng Zhang, Feiyang Wang, Paul H. C. Wong, Alexander C. Jenkins, Konstantinos Konstantinou, Nishant Dogra, Joseph H. Thywissen, Christoph Eigen, Zoran HadzibabicWed, 11 Ma⚛️ quant-ph

An elementary proof of symmetrization postulate in quantum mechanics for a system of particles

This paper provides a mathematical justification for the symmetrization postulate in three-dimensional quantum mechanics by demonstrating that, for a system of N identical particles with a continuous wave function and an exchange-invariant potential on a connected configuration space, the requirement of time-invariant probability density under particle exchange necessitates that the wave function be either totally symmetric or totally antisymmetric.

Diganta Parai, Nikhilesh MaityWed, 11 Ma⚛️ quant-ph

Quantum optical impurity models in interacting waveguide QED

This paper investigates interacting waveguide QED systems where the competition between attractive Jaynes-Cummings binding and repulsive Kerr nonlinearities leads to a rich phase diagram featuring Mott-like insulating and superfluid phases in periodic arrays of atomic impurities.

Adrian Paul Misselwitz, Jacquelin Luneau, Peter RablWed, 11 Ma⚛️ quant-ph

Generalized Gross-Pitaevskii Equation for 2D Bosons with Attractive Interactions

This paper introduces a generalized Gross-Pitaevskii equation with logarithmic density-dependent coupling to model 2D attractive Bose systems, enabling the theoretical analysis of quantum droplets, breathing modes, quench dynamics, and universal excited states while providing a robust framework for future experimental investigations.

Michał Suchorowski, Fabian Brauneis, Hans-Werner Hammer, Michał Tomza, Artem G. VolosnievTue, 10 Ma🔬 physics

Enhanced Rydberg Blockade through RF-tuned Förster Resonance

This paper demonstrates a technique using AC Stark shifts from a microwave drive to tune Rydberg atoms into a Förster resonance, thereby enhancing interaction strength and range by shifting the scaling from $1/R^6 $to$ 1/R^3$ while maintaining state stability and field insensitivity.

Lukas Palm, Bowen Li, Yiming Cady Feng, Marius Jürgensen, Jon SimonTue, 10 Ma🔬 physics.atom-ph

Quantum Droplets of Light in Semiconductor Microcavities

This paper predicts the existence of self-bound quantum droplets formed by a spin mixture of exciton-polaritons in atomically thin semiconductor microcavities, where tunable interactions near a biexciton Feshbach resonance balance mean-field attraction with quantum fluctuation-induced repulsion.

Matteo Caldara, Olivier Bleu, Francesca Maria Marchetti, Jesper Levinsen, Meera M. ParishTue, 10 Ma🔬 cond-mat.mes-hall

Soliton resuscitations: asymmetric revivals of the breathing mode of an atomic bright soliton in a harmonic trap

This paper explains the asymmetric pattern of breathing mode revivals in a harmonically trapped atomic bright soliton, where emitted atoms return to interfere with the soliton in a non-Markovian environment, by deriving an analytical approximation to the system's Bogoliubov-de Gennes frequency spectrum.

Waranon Sroyngoen, James R. AnglinTue, 10 Ma⚛️ quant-ph

Scattering and induced false vacuum decay in the two-dimensional quantum Ising model

Using tensor network simulations on a $24 \times 24$ lattice, this study characterizes the scattering dynamics of bound states and resonances in the two-dimensional quantum Ising model and demonstrates that highly-energetic collisions can induce violent false vacuum decay, leading to the spread of true vacuum bubbles.

Luka Pavešic, Marco Di Liberto, Simone MontangeroTue, 10 Ma⚛️ quant-ph

NASA's Cold Atom Laboratory: Five Years of Quantum Science Operations in Space

This paper provides an overview of NASA's Cold Atom Laboratory, detailing its design, five years of continuous operations on the International Space Station, its achievement of creating Bose-Einstein condensates in microgravity, recent upgrades, and future mission opportunities.

Kamal Oudrhiri, James M. Kohel, Nate Harvey, James R. Kellogg, David C. Aveline, Roy L. Butler, Javier Bosch-Lluis, John L. Callas, Leo Y. Cheng, Arvid P. Croonquist, Walker L. Dula, Ethan R. Elliott, Jose E. Fernandez, Jorge Gonzales, Raymond J. Higuera, Shahram Javidnia, Sandy M. Kwan, Norman E. Lay, Dennis K. Lee, Irena Li, Gregory J. Miles, Michael T. Pauken, Kelly L. Perry, Leah E. Phillips, Sarah K. Rees, Matteo S. Sbroscia, Christian Schneider, Robert F. Shotwell, Gregory Y. Shin, Cao V. Tran, Michel E. William, Oscar Yang, Nan Yu, Robert J Thompson, Jason R. Williams, Diane C. Malarik, DeVon W. Griffin, Bradley M. Carpenter, Michael P. Robinson, Kirt CostelloTue, 10 Ma⚛️ quant-ph

Fermi-pressure-assisted cavity superradiance in a mesoscopic Fermi gas

This study demonstrates that a mesoscopic Fermi gas in a high-finesse cavity exhibits a non-monotonic superradiant threshold driven by a crossover between Fermi pressure-assisted ordering and Pauli blocking, while also enabling the observation of spin-density-wave phases through spin-dependent light-induced forces.

Francesca Orsi, Ekaterina Fedotova, Rohit Prasad Bhatt, Mae Eichenberger, Léa Dubois, Jean-Philippe BrantutTue, 10 Ma⚛️ quant-ph