25 citations · 63 across the 4 of their papers we have counts for
6 papers · 1 filter
Capturing non-exponential dynamics in the presence of two decay channels
Francesco Giacosa, Przemysław Kościk, Tomasz Sowiński
The most unstable quantum states and elementary particles possess more than a single decay channel. At the same time, it is well known that typically the decay law is not simply ex…
Dynamical properties of a few mass-imbalanced ultra-cold fermions confined in a double-well potential
Dillip K. Nandy, Tomasz Sowiński
A comprehensive analysis of the exact unitary dynamics of two-component mass-imbalanced fermions in a one-dimensional double-well potential is accomplished by considering the total…
Unconventional pairing in one-dimensional systems of a few mass-imbalanced ultracold fermions
Patrycja Łydżba, Tomasz Sowiński
We study the ground-state properties of a two-component fermionic mixture effectively confined in a one-dimensional harmonic trap. We consider scenarios when numbers of particles i…
Signatures of unconventional pairing in spin-imbalanced one-dimensional few-fermion systems
Daniel Pęcak, Tomasz Sowiński
A system of a few attractively interacting fermionic Li atoms in one-dimensional harmonic confinement is investigated. Non-trivial inter-particle correlations induced by intera…
Geometry-induced entanglement in a mass-imbalanced few-fermion system
Damian Włodzyński, Daniel Pęcak, Tomasz Sowiński
Many-body systems undergoing quantum phase transitions reveal substantial growth of non-classical correlations between different parties of the system. This behavior is manifested…
Efficient construction of many-body Fock states having the lowest energies
Andrzej Chrostowski, Tomasz Sowiński
To perform efficient many-body calculations in the framework of the exact diagonalization of the Hamiltonian one needs an appropriately tailored Fock basis built from the single-pa…