Mesoscopic Systems Group

1. prof. dr hab. Mirosław Brewczyk - head
2. dr hab. Tomasz Karpiuk, prof. UwB
3. dr Krzysztof Gawryluk

Phd:

1. mgr Maciej Lewkowicz

• Ultracold degenerate atomic gases
• Weakly interacting bosons at nonzero temperatures
• Spinor and dipolar condesates; dipolar resonances; dynamic properties of cold gases and mixtures; topological properties of atomic gases; supersolid phase
• Correlations in low-dimensional bosonic and fermionic gases
• Quantum simulators (stripping and disruption of a white dwarf star in the field of a black hole)

• Institute of Physics, Polish Academy of Sciences, Warsaw
• Center for Theoretical Physics, Polish Academy of Sciences, Warsaw
• Institute of Information Technology, Warsaw University of Life Sciences, Warsaw
• Centre for Quantum Technologies, National University of Singapore, Singapore
• Laboratoire de Physique des Lasers, Universite Paris 13

2025

• Supersolidity of dipolar Bose-Einstein condensates induced by coupling to fermions, Phys. Rev. A 111, L011301 (2025)
• Studying the radiation of a white dwarf star falling onto a black hole, The Astrophysical Journal, Volume 980, Issue 2, id.256, 9 pp. (2025)

2024

• Fermionic atoms in a spin-dependent optical lattice potential: topological insulators with broken time-reversal symmetry, Phys. Rev. B 110, 205430 (2024)
• Mechanism for sound dissipation in a two-dimensional degenerate Fermi gas, Scientific Reports 14, 10815 (2024)

2023

• Phase separation of a repulsive two-component Fermi gas at the two- to three-dimensional crossover, Phys. Rev. A 110, 023325 (2024)

2022

• Dynamics of large samples of repulsive Fermi gases at nonzero temperatures, Physical Review A 105, 023315 (2022)
• Atoms in a spin dependent optical potential: ground state topology and magnetization, New J. Phys. 24 033041 (2022)

2021

• Spin distillation cooling of ultracold Bose gases, Scientific Reports 11, 6441 (2021)
• Berezinskii-Kosterlitz-Thouless phase induced by dissipating quasisolitons, Sci Rep 11, 10773 (2021)
• Modelling quantum aspects of disruption of a white dwarf star by a black hole, Scientific Reports, (2021) 11:2286
• Phase Transitions of Repulsive Two-Component Fermi Gases in Two Dimensions, New J. Phys. 23, 103042 (2021)

2020

• Bistability of Bose-Fermi mixtures, New J Phys. 22, 103025 (2020)
• Breathing Mode of a Bose-Einstein Condensate Immersed in a Fermi Sea, Phys. Rev. Lett. 125, 103401 (2020)
• Nonzero temperature dynamics of a repulsive two-component Fermi gas, Phys. Rev. A 101, 013618 (2020)
• Collective oscillations of a two-component Fermi gas on the repulsive branch, SciPost Phys. 8, 066 (2020)
• Fermionic quantum carpets: From canals and ridges to solitonlike structures, Phys. Rev. Research 2, 013119 (2020)

2019

• Signatures of a universal jump in the superfluid density in two-dimensional Bose gas with finite number of particles, Phys. Rev. A 99, 033615 (2019)
• Self-bound Bose-Fermi liquids in lower dimensions, New J. Phys. 21, 073027 (2019)
• Quantum Bose-Fermi droplets, SciPost Phys. 6, 079 (2019)

2017

• Unified description of dynamics of a repulsive two-component Fermi gas, Phys. Rev. Lett. 119, 215303 (2017)
• Condensate losses and oscillations induced by Rydberg atoms, J. Phys. B: At. Mol. Opt. Phys. 50 (2017) 055003
• Thermal solitons as revealed by static structure factor, Phys. Rev. A 95, 043612 (2017)

2016

• Competition between Bose Einstein Condensation and spin dynamics Phys. Rev. Lett. 117, 185302 (2016)
• Single-shot simulations of dynamics of quantum dark solitons Phys. Rev. A 94, 023623 (2016)
• Ground-state densities of repulsive two-component Fermi gases Phys. Rev. A 93, 023612 (2016)

2015

• Density fluctuations in a quasi-one-dimensional Bose gas as observed in free expansion Phys. Rev. A 92, 043607 (2015)
• Imaging single Rydberg electrons in a Bose-Einstein condensate New J. Phys. 17, 053046 (2015)
• Correspondence between dark solitons and the type II excitations of Lieb-Liniger model Phys. Rev. A 91, 013621 (2015)
• Thermalization of matter waves in speckle potentials Phys. Rev. A 92, 063614 (2015)

2014

• Mott-insulator phases at half-integer fillings in the imbalanced honeycomb lattice Phys. Rev. A 89, 063615 (2014)
• Optimization as a route towards observing the Einstein-de Haas effect in a rubidium condensate Phys. Rev. A 90, 063635 (2014)
• Resonant dynamics of chromium condensates Phys. Rev. A 89, 023622 (2014)