Recent developments in quantum Monte Carlo simulations with applications for cold gases

L Pollet - Reports on progress in physics, 2012 - iopscience.iop.org
This is a review of recent developments in Monte Carlo methods in the field of ultracold
gases. For bosonic atoms in an optical lattice we discuss path-integral Monte Carlo …

Interlayer superfluidity in bilayer systems of fermionic polar molecules

A Pikovski, M Klawunn, GV Shlyapnikov, L Santos - Physical review letters, 2010 - APS
We consider fermionic polar molecules in a bilayer geometry where they are oriented
perpendicularly to the layers, which permits both low inelastic losses and superfluid pairing …

Superfluidity and dimerization in a multilayered system of fermionic polar molecules

AC Potter, E Berg, DW Wang, BI Halperin, E Demler - Physical review letters, 2010 - APS
We consider a layered system of fermionic molecules with permanent dipole moments
aligned perpendicular to the layers by an external field. The dipole interactions between …

Emergent topological properties in interacting one-dimensional systems with spin-orbit coupling

N Kainaris, ST Carr - Physical Review B, 2015 - APS
We present analysis of a single-channel interacting quantum wire problem in the presence
of spin-orbit interaction. The spin-orbit coupling breaks the spin-rotational symmetry from SU …

Exact ground state energy of a system with an arbitrary number of dipoles at the sites of a regular one-dimensional crystal lattice

O Ciftja - Journal of Physics and Chemistry of Solids, 2023 - Elsevier
We consider a finite classical system of electric dipoles localized at the sites of a regular one-
dimensional crystal lattice. It is shown that the ground state energy of such a system can be …

Scaling of entanglement entropy across Lifshitz transitions

M Rodney, HF Song, SS Lee, K Le Hur… - Physical Review B …, 2013 - APS
We investigate the scaling of the bipartite entanglement entropy across Lifshitz quantum
phase transitions, where the topology of the Fermi surface changes without any changes in …

Density-wave patterns for fermionic dipolar molecules on a square optical lattice: Mean-field-theory analysis

K Mikelsons, JK Freericks - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
We model a system of ultracold fermionic dipolar molecules on a two-dimensional square
lattice. Assuming that the molecules are in their nondegenerate hyperfine ground state, and …

Magnetic Fluctuations and Specific Heat in Near a Lifshitz Transition

S Slizovskiy, AV Chubukov, JJ Betouras - Physical review letters, 2015 - APS
We analyze the temperature and doping dependence of the specific heat C (T) in Na x CoO
2. This material was conjectured to undergo a Lifshitz-type topological transition at x= xc …

Ab initio insights on the fermiology of transition metals on the honeycomb lattice: Hierarchy of hopping pathways and spin-orbit coupling

M Gupta, B Mondal, S Bhattacharjee… - Physical Review …, 2023 - APS
Recently, the physics of J= 3/2 electrons on a honeycomb lattice has received attention with
the suggestion of hosting an SU (8) Dirac semimetallic state. Motivated by this, in this work …

Understanding and controlling the collisions of ultracold polar molecules

R Bause - 2022 - edoc.ub.uni-muenchen.de
Ultracold polar molecules offer a multitude of fascinating possibilities for physical research.
Proposals for their use reach from quantum chemistry, where they enable detailed studies of …