Article
Mechanics
Isabelle Bouchoule, Jerome Dubail
Summary: This article reviews the recent progress in the generalized hydrodynamics (GHD) behavior of the one-dimensional Bose gas with contact repulsive interactions, known as the Lieb-Liniger gas. The theory and key concepts of the Lieb-Liniger gas, including rapidities and rapidity distribution, are introduced. The asymptotic regimes and approximate descriptions of the Lieb-Liniger gas are presented. Experimental results in cold atom experiments, including the realization of the Lieb-Liniger model and tests of the GHD theory, are discussed. The effects of atom losses and some open questions are also reviewed.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2022)
Article
Physics, Multidisciplinary
Pei Wang
Summary: The paper develops a quantum theory with discrete Poincare symmetry on a one-dimensional Bravais lattice and establishes a Lorentz-invariant many-body theory for indistinguishable particles. It analyzes typical Hamiltonians and calculates the Green's function.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2021)
Article
Physics, Multidisciplinary
Matjaz Kebric, Umberto Borla, Ulrich Schollwoeck, Sergej Moroz, Luca Barbiero, Fabian Grusdt
Summary: Coupling dynamical charges to gauge fields leads to non-local interactions and confinement potential, resulting in the formation of mesons and emergence of Luttinger liquids. Including nearest-neighbour (NN) interactions among charges stabilizes different Mott-insulating states. However, the rich phase diagrams in these models have not been fully explored and lack comprehensive theoretical explanation.
NEW JOURNAL OF PHYSICS
(2023)
Article
Quantum Science & Technology
Keisuke Asahara, Daiju Funakawa, Motoki Seki, Yohei Tanaka
Summary: Recent developments in the index theory of discrete-time quantum walks have allowed for the application of the theory to non-unitary time evolutions, showing that unitarity is not necessary for certain calculations in this context.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Matteo Barborini, Matteo Calandra, Francesco Mauri, Ludger Wirtz, Pierluigi Cudazzo
Summary: This work investigates the purely electronic instability in one-dimensional semimetals independent of a lattice distortion by accurate ab initio calculations on one-dimensional carbon chain and monatomic hydrogen chain based on quantum Monte Carlo and hybrid density functional theory.
Article
Physics, Multidisciplinary
Martin Bonkhoff, Kevin Jaegering, Sebastian Eggert, Axel Pelster, Michael Thorwart, Thore Posske
Summary: Research shows that anyons with arbitrary exchange phases exist on 1D lattices and can be derived from interacting bosons in continuum theories. This theory maintains the exchange phase periodicity similar to 2D anyons and predicts different velocities for left- and right-moving collective excitations.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Austin K. Daniel, Akimasa Miyake
Summary: This study demonstrates advantageous strategies for nonlocal games on one-dimensional symmetry-protected topological orders, when the twist phase of SPTOs is nontrivial and -1. It shows that sufficiently large string order parameters of such SPTOs indicate globally constrained correlations that are useful for unconditional computational separation.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Applied
Shan Zhang, Zezhou Wang, Junjun Liu, Bo Cui
Summary: The dynamics of Bose-Einstein condensates in a one-dimensional ring optical lattice is influenced by the interplay between open system conditions and the initial atomic distribution. A circulation evaluation model based on relative atomic density is established to analyze circulation strength under low dissipation. The direction of circulation can be manipulated by changing atomic distribution and the number of lattice sites. The effect of atomic interaction on atom flow in the optical ring lattice is analyzed to maintain current interval rotation behavior.
MODERN PHYSICS LETTERS B
(2022)
Article
Physics, Multidisciplinary
Zhaoxuan Zhu, Hepeng Yao, Laurent Sanchez-Palencia
Summary: Quantum simulation of quasicrystals in synthetic bosonic matter has opened up possibilities for exploring these fascinating systems across a wide range of parameters. However, thermal fluctuations and their competition with quantum coherence can have a significant impact on the quantum phases at zero temperature. In this study, we determine the thermodynamic phase diagram of interacting bosons in a two-dimensional, homogeneous quasicrystal potential using quantum Monte Carlo simulations. We carefully consider finite-size effects and systematically distinguish between quantum and thermal phases. Our results reveal the stabilization of a genuine Bose glass phase against the normal fluid in significant parameter ranges. We also discuss the experimental implications and interpret our findings for strong interactions using a fermionization picture.
PHYSICAL REVIEW LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Ruipeng Li, Jonas von Milczewski, Atac Imamoglu, Rafal Oldziejewski, Richard Schmidt
Summary: We study induced pairing between two identical fermions mediated by an attractively interacting quantum impurity in two-dimensional systems. Based on a stochastic variational method (SVM), we investigate the influence of confinement and finite interaction range on the ground state of the quantum three-body problem. We find that confinement and a finite interaction range can enhance trimer stability and overcome Coulomb repulsion, opening possibilities for electron pairing beyond conventional paradigms.
Article
Physics, Multidisciplinary
Milosz Panfil, Sarang Gopalakrishnan, Robert M. Konik
Summary: Many experimentally relevant systems are quasi-one-dimensional, consisting of nearly decoupled chains, where weak interchain couplings play a crucial role in thermalizing the system. We developed a Boltzmann-equation formalism involving a collision integral that is asymptotically exact for any interacting integrable system, and applied it to study relaxation in coupled Bose gases in the Newton's cradle setup. We found that relaxation involves a broad spectrum of timescales and the Markov process governing relaxation at late times is gapless, leading to nonexponential approach to equilibrium even for spatially uniform perturbations.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
Huaiyu Duan, Joshua D. Martin, Sivaprasad Omanakuttan
Summary: This study investigates flavor oscillations of fast neutrinos in core-collapse supernovae or binary neutron star mergers, finding nontrivial solutions through numerical calculations and nonlinear analysis. The results suggest the existence of a coherent flavor isospin wave similar to a magnetic spin wave in a lattice of magnetic dipoles.
Article
Optics
T. Mithun, S. Mistakidis, P. Schmelcher, P. G. Kevrekidis
Summary: This study investigates the statistical mechanics and dynamical process of modulationally unstable one-dimensional quantum droplets using a semi-analytical transfer integral operator technique. Instability leads to the spontaneous formation and merging of quantum droplets. Results show good agreement among different methodologies, except for deviations between the TIO solution and Langevin dynamics in cases of low temperature droplet widening.
Article
Physics, Multidisciplinary
Abdelaali Boudjemaa, Karima Abbas
Summary: In this paper, the static and dynamic properties of self-bound quantum droplets in a one-dimensional Bose-Bose mixture are discussed. The effect of beyond LHY corrections on the droplets is also explored. The results provide insights into the behavior of these droplets in different conditions.
NEW JOURNAL OF PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Rui Aquino, Nei Lopes, Daniel G. Barci
Summary: In this study, we investigate non-Hermitian topological phase transitions using real-space edge states as a tool. We focus on the simplest non-Hermitian variant of the Su-Schrieffer-Heeger model and analyze the behavior of the zero-energy edge states in nontrivial topological phases. Depending on the parameters, these edge states may penetrate into the bulk, similar to Hermitian topological phase transitions. We also use the topological characterization of exceptional points to describe the intricate chiral behavior of the edge states across the entire phase diagram, and determine the criticality of the model through numerical calculations.
Article
Physics, Multidisciplinary
S. Barbarino, D. Rossini, M. Rizzi, R. Fazio, G. E. Santoro, M. Dalmonte
NEW JOURNAL OF PHYSICS
(2019)
Article
Physics, Multidisciplinary
A. Kshetrimayum, M. Rizzi, J. Eisert, R. Orus
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Multidisciplinary
Philipp Schmoll, Sukhbinder Singh, Matteo Rizzi, Roman Orus
Review
Multidisciplinary Sciences
Monika Aidelsburger, Luca Barbiero, Alejandro Bermudez, Titas Chanda, Alexandre Dauphin, Daniel Gonzalez-Cuadra, Przemyslaw R. Grzybowski, Simon Hands, Fred Jendrzejewski, Johannes Junemann, Gediminas Juzeliunas, Valentin Kasper, Angelo Piga, Shi-Ju Ran, Matteo Rizzi, German Sierra, Luca Tagliacozzo, Emanuele Tirrito, Torsten Zache, Jakub Zakrzewski, Erez Zohar, Maciej Lewenstein
Summary: This article discusses the replacement of fermionic matter with bosonic matter in quantum field theory models relevant for particle physics. The motivation behind this substitution is that bosons are more accessible and easier to manipulate for experimentalists, which leads to new physics and novel phenomena. The article also explores atomic simulators of paradigmatic models of particle physics theory. It reviews the activities related to quantum simulations for lattice field theories performed by the Quantum Optics Theory group at ICFO and their collaborators from 19 institutions worldwide. Additionally, the article briefly describes efforts to design experimentally friendly simulators for these and other models relevant for particle physics.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Physics, Multidisciplinary
Philipp Schmoll, Augustine Kshetrimayum, Jens Eisert, Roman Orus, Matteo Rizzi
Summary: In this study, the classical Heisenberg model in two spatial dimensions was investigated using state-of-the-art tensor network approaches, revealing a rapidly diverging correlation length as temperatures decrease, which is apparently compatible with both the contradictory hypotheses of finite-T transition and asymptotic freedom. The results slightly favor the second hypothesis.
Article
Optics
Gianni Aupetit-Diallo, Giovanni Pecci, Charlotte Pignol, Frederic Hebert, Anna Minguzzi, Mathias Albert, Patrizia Vignolo
Summary: This study investigates the equilibrium properties of a one-dimensional mixture of two Tonks-Girardeau gases on a ring geometry under strongly repulsive interspecies interactions. The role of SU(2) symmetry breaking on the behavior of large- and short-distance correlations is studied, revealing important consequences for spin correlations in the system.
Article
Physics, Multidisciplinary
Daniele Contessi, Donato Romito, Matteo Rizzi, Alessio Recati
Summary: The study theoretically investigates the Andreev-Bashkin collisionless drag in a one-dimensional Bose-Hubbard model on a ring and calculates the superfluid stiffness matrix using tensor network algorithms. The focus is on the region close to the pair-superfluid phase where the drag can be significant. The importance of drag in determining long-range behavior of correlation functions and the spin speed of sound is highlighted, providing an expression for the spin Luttinger parameter K-S.
PHYSICAL REVIEW RESEARCH
(2021)
Article
Physics, Multidisciplinary
Andreas Haller, Apollonas S. Matsoukas-Roubeas, Yueting Pan, Matteo Rizzi, Michele Burrello
PHYSICAL REVIEW RESEARCH
(2020)
Article
Physics, Multidisciplinary
Andreas Haller, Pietro Massignan, Matteo Rizzi
PHYSICAL REVIEW RESEARCH
(2020)
Article
Physics, Multidisciplinary
E. Macaluso, T. Comparin, R. O. Umucalilar, M. Gerster, S. Montangero, M. Rizzi, I Carusotto
PHYSICAL REVIEW RESEARCH
(2020)
Article
Physics, Multidisciplinary
Andreas Haller, Matteo Rizzi, Michele Filippone
PHYSICAL REVIEW RESEARCH
(2020)
Article
Optics
M. Albert, C. A. Mueller
Article
Materials Science, Multidisciplinary
Philipp Schmoll, Andreas Haller, Matteo Rizzi, Roman Orus
Article
Materials Science, Multidisciplinary
E. Tirrito, M. Rizzi, G. Sierra, M. Lewenstein, A. Bermudez
Article
Materials Science, Multidisciplinary
Christine Cartwright, Gabriele De Chiara, Matteo Rizzi