Cold bosons in optical lattices: a tutorial for exact diagonalization
D Raventós, T Graß, M Lewenstein… - Journal of Physics B …, 2017 - iopscience.iop.org
Exact diagonalization (ED) techniques are a powerful method for studying many-body
problems. Here, we apply this method to systems of few bosons in an optical lattice, and use …
problems. Here, we apply this method to systems of few bosons in an optical lattice, and use …
Symmetry-enriched criticality in a coupled spin ladder
We study a one-dimensional ladder of two coupled XXZ spin chains and identify several
distinct gapless symmetry-enriched critical phases. These have the same unbroken …
distinct gapless symmetry-enriched critical phases. These have the same unbroken …
Intrinsic dimension of path integrals: Data-mining quantum criticality and emergent simplicity
Quantum many-body systems are characterized by patterns of correlations defining highly
nontrivial manifolds when interpreted as data structures. Physical properties of phases and …
nontrivial manifolds when interpreted as data structures. Physical properties of phases and …
Revealing the topological nature of the bond order wave in a strongly correlated quantum system
We investigate the topological properties of the bond order wave phase arising in the
extended Fermi-Hubbard model. In particular, we uncover a topological sector, which …
extended Fermi-Hubbard model. In particular, we uncover a topological sector, which …
Scaling of the gap, fidelity susceptibility, and Bloch oscillations across the superfluid-to-Mott-insulator transition in the one-dimensional Bose-Hubbard model
We investigate the interaction-induced superfluid-to-Mott-insulator transition in the one-
dimensional Bose-Hubbard model (BHM) for fillings n= 1, n= 2, and n= 3 by studying the …
dimensional Bose-Hubbard model (BHM) for fillings n= 1, n= 2, and n= 3 by studying the …
Phase detection with neural networks: interpreting the black box
Neural networks (NNs) usually hinder any insight into the reasoning behind their
predictions. We demonstrate how influence functions can unravel the black box of NN when …
predictions. We demonstrate how influence functions can unravel the black box of NN when …
Topological charge pumping of bound bosonic pairs
Experiments with bosonic atoms in optical superlattices allow for the interesting possibility to
study the adiabatic quantized pumping of bosonic atoms in the presence of interactions. We …
study the adiabatic quantized pumping of bosonic atoms in the presence of interactions. We …
Truncation effects in the charge representation of the O (2) model
The O (2) model in Euclidean space-time is the zero-gauge-coupling limit of the compact
scalar quantum electrodynamics. We obtain a dual representation of it called the charge …
scalar quantum electrodynamics. We obtain a dual representation of it called the charge …
Topological marker approach to an interacting Su-Schrieffer-Heeger model
The topological properties of the Su-Schrieffer-Heeger (SSH) model in the presence of
nearest-neighbor interaction are investigated by means of a topological marker, generalized …
nearest-neighbor interaction are investigated by means of a topological marker, generalized …
Work and quantum phase transitions: Quantum latency
E Mascarenhas, H Bragança, R Dorner… - Physical Review E, 2014 - APS
We study the physics of quantum phase transitions from the perspective of nonequilibrium
thermodynamics. For first-order quantum phase transitions, we find that the average work …
thermodynamics. For first-order quantum phase transitions, we find that the average work …