cond-mat.quant-gas papers

This category explores the fascinating world of quantum gases, where scientists cool atoms to temperatures near absolute zero to create exotic states of matter. In these extreme conditions, individual atoms begin to behave like a single giant wave, revealing strange quantum effects that are usually hidden in our everyday warm world. These experiments help researchers understand the fundamental rules governing matter and could one day lead to revolutionary new technologies like ultra-precise sensors or quantum computers.

On Gist.Science, we process every new preprint in this field directly from arXiv to make these complex discoveries accessible to everyone. Our team provides both plain-language overviews for the curious mind and detailed technical summaries for experts, ensuring you get the full picture without getting lost in the jargon. Below are the latest papers from arXiv in Cond-Mat — Quant-Gas, freshly summarized and ready for you to explore.

Mass-imbalance effect on the cluster formation in a one-dimensional Fermi gas with coexistent $s$ - and $p$ -wave interactions

This study investigates how mass imbalance influences the formation of stable two- and three-body clusters in a one-dimensional Fermi gas with coexisting $s$ - and $p$ -wave interactions, revealing that while vacuum three-body states are always more deeply bound than two-body ones, moderate interactions in the medium favor a Cooper trimer phase over pairing, accompanied by competition among different trimer configurations.

Yixin Guo2026-02-19⚛️ nucl-th

atomSmltr: a modular Python package to simulate laser cooling setups

The paper introduces atomSmltr, a modular Python package designed to simulate laser cooling in complex magnetic and laser beam geometries, featuring a flexible architecture for constructing experimental setups and validated through benchmarks against standard textbook cases.

Mateo Weill, Andrea Bertoldi, Alexandre Dareau2026-02-19🔬 physics.atom-ph

Universal Predictors for Mixing Time more than Liouvillian Gap

This paper establishes that the mixing time of open quantum systems is determined not only by the Liouvillian gap but also by the trace norm of the lowest excited state, enabling the derivation of general rapid mixing conditions based on Hamiltonian and Lindblad operator sparsity to guide efficient experimental state preparation.

Yi-Neng Zhou2026-02-19⚛️ quant-ph

Stability of Bose-Fermi mixtures in two dimensions: a lowest-order constrained variational approach

Using the lowest-order constrained variational approach, this study determines the minimal boson-boson repulsion required to ensure mechanical stability in two-dimensional Bose-Fermi mixtures with tunable interactions, revealing that equal mass ratios significantly enhance stability and require the least repulsion to prevent collapse.

Pietro Cordioli, Leonardo Pisani, Pierbiagio Pieri2026-02-19🔬 cond-mat

Signatures of Quantum Phase Transitions in Driven Dissipative Spin Chains

This Letter demonstrates that driven dissipative spin chains exhibit pronounced signatures of quantum phase transitions, such as a peak in correlation length near the critical point, by developing an analytical approach based on a generalized Gibbs ensemble that connects the steady state of weakly dissipative systems to quench dynamics.

Mostafa Ali, Naushad A. Kamar, Alireza Seif, Mohammad Maghrebi2026-02-18🔬 cond-mat

Quasi-particle residue and charge of the one-dimensional Fermi polaron

This paper demonstrates that while a variational Ansatz accurately predicts the energy and effective mass of a one-dimensional Fermi polaron, it fails qualitatively in the thermodynamic limit by incorrectly predicting a finite quasi-particle residue and zero charge, whereas exact methods reveal a vanishing residue consistent with Luttinger-liquid physics and a charge that grows from zero to one with increasing coupling.

Giuliano Orso, Lovro Barišić, Ekaterina Gradova, Frédéric Chevy, Kris Van Houcke2026-02-18🔬 cond-mat

Fundamentals of Trapped Ions and Quantum Simulation of Chemical Dynamics

This review provides a pedagogical overview of trapped-ion systems, detailing their fundamental physics and control mechanisms while highlighting their emerging capabilities in simulating chemical dynamics and outlining future challenges in scaling quantum architectures.

Guido Pagano, Wojciech Adamczyk, Visal So2026-02-18🔬 physics.atom-ph

Eigenstate Thermalization Hypothesis (ETH) for off-diagonal matrix elements in integrable spin chains

Using advanced Algebraic Bethe Ansatz techniques, this study demonstrates that off-diagonal matrix elements of local operators in the integrative isotropic spin- $1/2$ Heisenberg chain exhibit distinct exponential decay behaviors and follow Gumbel distributions depending on whether the eigenstates belong to the same or different thermodynamic macrostates.

Federico Rottoli, Vincenzo Alba2026-02-18⚛️ hep-th

Magnetization-induced reordering of ground states phase diagram in a two-component Bose-Hubbard model

This study demonstrates that non-zero magnetization significantly reshapes the ground-state phase diagram of a two-component Bose-Hubbard model by creating distinct Mott insulator boundaries for each component, thereby inducing a hybrid phase where superfluidity and Mott insulation coexist.

Oskar Stachowiak, Hubert Dunikowski, Emilia Witkowska2026-02-18🔬 cond-mat

Exact kinetic propagators for coherent state complex Langevin simulations

This paper introduces and benchmarks an improved complex Langevin algorithm for bosonic coherent state path integrals that utilizes Strang splitting to achieve guaranteed linear stability and higher-order accuracy at negligible computational cost, demonstrating its efficiency for both single-species and Rashba spin-orbit coupled bosonic systems.

Thomas G. Kiely, Ethan C. McGarrigle, Glenn H. Fredrickson2026-02-18🔬 cond-mat

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cond-mat.quant-gas

Mass-imbalance effect on the cluster formation in a one-dimensional Fermi gas with coexistent sss- and ppp-wave interactions