81 citations · 333 across the 36 of their papers we have counts for
9 papers · 1 filter
Effective theory for strongly attractive one-dimensional fermions
Timothy G. Backert, Fabian Brauneis, Matija Čufar +3
We study a one-dimensional system of two-component fermions in the limit of strong attractive particle-particle interactions. First, we analyze scattering in the corresponding few-…
Two-dimensional bosonic droplets in a harmonic trap
Fabian Brauneis, Artem G. Volosniev, Hans-Werner Hammer
We investigate a system of bosons in a two-dimensional harmonic trap. In the limit of strong attractive interactions, the bosons make a droplet insensitive to external confinement.…
Comparison of renormalized interactions using one-dimensional few-body systems as a testbed
Fabian Brauneis, Hans-Werner Hammer, Stephanie M. Reimann +1
Even though the one-dimensional contact interaction requires no regularization, renormalization methods have been shown to improve the convergence of numerical ab initio calculatio…
Necklace Ansatz for strongly repulsive spin mixtures on a ring
Gianni Aupetit-Diallo, Giovanni Pecci, Artem Volosniev +3
We 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-comp…
Quantum rotor in a two-dimensional mesoscopic Bose gas
Michał Suchorowski, Alina Badamshina, Mikhail Lemeshko +2
We investigate a molecular quantum rotor in a two-dimensional Bose-Einstein condensate. The focus is on studying the angulon quasiparticle concept in the crossover from few- to man…
Massive Dirac-Pauli physics in lead-halide perovskites
Abhishek Shiva Kumar, Mikhail Maslov, Mikhail Lemeshko +2
In standard quantum electrodynamics (QED), the so-called non-minimal (Pauli) coupling is suppressed for elementary particles and has no physical implications. Here, we show that th…
Observation of Analogue Dynamic Schwinger Effect and Non-Perturbative Light Sensing in Lead Halide Perovskites
Dusan Lorenc, Artem G. Volosniev, Ayan A. Zhumekenov +5
Dielectric breakdown of physical vacuum (Schwinger effect) is the textbook demonstration of compatibility of Relativity and Quantum theory. Although observing this effect is still…
Anisotropic potential immersed in a dipolar Bose-Einstein condensate
Neelam Shukla, Artem G. Volosniev, Jeremy R. Armstrong
We study a modified three-dimensional Gross-Pitaevski equation that describes a static impurity in a dipolar Bose-Einstein condensate (BEC). Our focus is on the interplay between t…
Classical 'spin' filtering with two degrees of freedom and dissipation
Atul Varshney, Areg Ghazaryan, Artem G. Volosniev
Coupling of angular motion to a spin degree of freedom gives rise to various transport phenomena in quantum systems that are beyond the standard paradigms of classical physics. Her…