91 citations · 235 across the 13 of their papers we have counts for
10 papers · 1 filter
Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
S. I. Mistakidis, A. G. Volosniev, R. E. Barfknecht +5
Cold atomic gases have become a paradigmatic system for exploring fundamental physics, which at the same time allows for applications in quantum technologies. The accelerating deve…
Flavour-selective localization in interacting lattice fermions via SU(N) symmetry breaking
Daniele Tusi, Lorenzo Franchi, Lorenzo Francesco Livi +10
A large repulsion between particles in a quantum system can lead to their localization, as it happens for the electrons in Mott insulating materials. This paradigm has recently bra…
Generation of spin currents by a temperature gradient in a two-terminal device
R. E. Barfknecht, A. Foerster, N. T. Zinner +1
Theoretical and experimental studies of the interaction between spins and temperature are vital for the development of spin caloritronics, as they dictate the design of future devi…
Engineering entanglement Hamiltonians with strongly interacting cold atoms in optical traps
R. E. Barfknecht, T. Mendes-Santos, L. Fallani
We present a proposal for the realization of entanglement Hamiltonians in one-dimensional critical spin systems with strongly interacting cold atoms. Our approach is based on the n…
Systematic interpolatory ansatz for one-dimensional polaron systems
E. J. Lindgren, R. E. Barfknecht, N. T. Zinner
We explore a new variational principle for studying one-dimensional quantum systems in a trapping potential. We focus on the Fermi polaron problem, where a single distinguishable i…
Dynamics of spin and density fluctuations in strongly interacting few-body systems
Rafael Emilio Barfknecht, Angela Foerster, Nikolaj Thomas Zinner
The decoupling of spin and density dynamics is a remarkable feature of quantum one-dimensional many-body systems. In a few-body regime, however, little is known about this phenomen…
Emergence of junction dynamics in a strongly interacting Bose mixture
Rafael E. Barfknecht, Angela Foerster, Nikolaj T. Zinner
We study the dynamics of a one-dimensional system composed of a bosonic background and one impurity in single- and double-well trapping geometries. In the limit of strong interacti…
Dynamical realization of magnetic states in a strongly interacting Bose mixture
Rafael E. Barfknecht, Angela Foerster, Nikolaj T. Zinner
We describe the dynamical preparation of magnetic states in a strongly interacting two-component Bose gas in a harmonic trap. By mapping this system to an effective spin chain mode…
Correlation properties of a three-body bosonic mixture in a harmonic trap
R. E. Barfknecht, A. S. Dehkharghani, A. Foerster +1
We make use of a simple pair correlated wave function approach to obtain results for the ground-state densities and momentum distribution of a one-dimensional three-body bosonic sy…
Contact and Structure Factor for Bosonic and Fermionic Mixtures
Rafael E. Barfknecht, Ioannis Brouzos, Angela Foerster
We study measurable quantities of bosonic and fermionic mixtures on a one-dimensional ring. These few-body ensembles consist of majority atoms obeying certain statistics (Fermi or…