Review
Physics, Multidisciplinary
Dante M. Kennes, Martin Claassen, Lede Xian, Antoine Georges, Andrew J. Millis, James Hone, Cory R. Dean, D. N. Basov, Abhay N. Pasupathy, Angel Rubio
Summary: Twisted van der Waals heterostructures have attracted attention as a robust quantum simulation platform for studying strongly correlated physics and topology in quantum materials. Their versatility, feasibility to realize many-body quantum models, and availability of experimental readout protocols open up new possibilities in accessible physics and hold promise for future technological applications.
Article
Physics, Multidisciplinary
Pierpaolo Fontana, Joao C. Pinto Barros, Andrea Trombettoni
Summary: This study presents a reformulation of gauge theories using gauge invariant fields, showing how gauge and matter covariant fields can be recombined to introduce new gauge invariant degrees of freedom. By applying this reformulation to various physical examples, the researchers demonstrate the practical utility of the method.
Article
Physics, Multidisciplinary
Ya S. Lyakhova, E. A. Polyakov, A. N. Rubtsov
Summary: Recent research focuses on leveraging the quantum laws of nature in machine learning, with models such as the spin-fermion machine proposed. SFM training is efficient with closed expressions for the log-likelihood gradient, showing greater power compared to classical models.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2021)
Article
Physics, Multidisciplinary
Asmi Haldar, Diptiman Sen, Roderich Moessner, Arnab Das
Summary: In this study, a clean quantum system subject to strong periodic driving is investigated, revealing the presence of freezing points in the space of drive parameters and the emergence of an almost exact, local conserved quantity. The phenomenon, which affects the entire Floquet spectrum, is shown to be robust across a variety of Hamiltonians, including those with two-body Heisenberg interactions. Resonance phenomena where the conservation breaks down and unbounded heating occurs are captured through a real-time perturbation theory, providing insights into the failure of the Magnus expansion in the low-frequency regime.
Review
Multidisciplinary Sciences
Francisco J. Garcia-Vidal, Cristiano Ciuti, Thomas W. Ebbesen
Summary: In the past decade, there has been a surge of interest in using hybrid light-matter states to control the properties of matter and chemical reactivity. Experimental and theoretical studies have shown that these hybrid states can enhance properties like transport, magnetism, and superconductivity, as well as modify (bio)chemical reactivity. This multidisciplinary field has great potential for further exploration.
Article
Multidisciplinary Sciences
Anffany Chen, Hauke Brand, Tobias Helbig, Tobias Hofmann, Stefan Imhof, Alexander Fritzsche, Tobias Kieling, Alexander Stegmaier, Lavi K. Upreti, Titus Neupert, Tomas Bzdusek, Martin Greiter, Ronny Thomale, Igor Boettcher
Summary: In this study, we introduce and experimentally realize hyperbolic matter as a paradigm for topological states using topolectrical circuit networks with a complex-phase circuit element. We confirm hyperbolic band theory through an unprecedented numerical survey of finite hyperbolic lattices. Our work demonstrates the implementation of hyperbolic graphene as an example of topologically nontrivial hyperbolic matter. This research sets the stage for realizing more complex forms of hyperbolic matter and provides a key ingredient for future experimental simulation of various Hamiltonians with topological ground states.
NATURE COMMUNICATIONS
(2023)
Article
Astronomy & Astrophysics
Steffen Gielen, Axel Polaczek
Summary: The author extends the construction of Hamiltonian group field theory to models with multiple scalar matter fields, finding that the effective cosmological dynamics reduce to the Friedmann dynamics of general relativity with multiple scalar fields in the limit of large volume. At high energy, corrections to the classical Friedmann equations are found, leading to generic singularity resolution by a bounce. Additionally, the effective cosmological dynamics treat the clock field and other matter fields differently for generic initial conditions, in disagreement with the Friedmann dynamics of general relativity.
Article
Physics, Multidisciplinary
Jialiang Dai
Summary: In this study, consistent interactions among Abelian gauge fields and various higher derivative matter fields are constructed within the framework of the Hamiltonian BRST formalism. Through the use of iterative equations and cohomological techniques, it is found that certain deformations of the BRST charge need to be zero, while higher-order deformation terms of the BRST-invariant Hamiltonian may vanish completely in some cases.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Physics, Multidisciplinary
Teng Ji, Li Li, Hao-Tian Sun
Summary: This paper studies the thermoelectric transport of two-dimensional quantum matter under shear strain using holographic duality. It obtains general analytic formulas for DC thermoelectric conductivities subjected to finite shear strain and discusses the effects of strain on various conductivities. The study finds a metal-insulator transition driven by the shear deformation and observes the violation of the previously conjectured thermal conductivity bound under large shear deformation.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2023)
Article
Physics, Particles & Fields
Aristomenis Donos, Christiana Pantelidou, Vaios Ziogas
Summary: In this study, holography was utilized to derive effective theories of fluctuations in spontaneously broken phases, with a focus on systems with finite temperature, chemical potential, magnetic field, and momentum relaxation where translations are broken. The hydrodynamic modes corresponding to coupled thermoelectric and density wave fluctuations were analytically constructed, revealing them to be purely diffusive in the system. Introduction of pinning for density waves resulted in some modes acquiring not only a gap, but also a finite resonance due to the presence of a magnetic field. Optical properties were studied and numerical checks of the analytical results were performed. An important outcome of the analysis was the identification of the correct current responsible for heat transport in the system.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Editorial Material
Multidisciplinary Sciences
Aran Garcia-Lekue, Daniel Sanchez-Portal
Summary: The inclusion of nitrogen atoms stabilizes the zigzag edges of carbon-based nanoribbons, enabling them to be decoupled from a substrate and providing a probe for their unconventional magnetism.
Article
Astronomy & Astrophysics
Simon Catterall
Summary: The proposal describes a lattice theory model capable of producing free Weyl fermions in the continuum limit using reduced staggered fermions and site parity dependent Yukawa interactions. The model successfully addresses certain discrete anomalies arising in the continuum limit and has numerical results supporting the scenario in two dimensions.
Article
Physics, Multidisciplinary
Javier del Pino, Oded Zilberberg
Summary: The quantum simulation of dynamical gauge field theories allows for studying complex high-energy physics using controllable low-energy devices. In this study, we demonstrate the use of bosonic codes to simulate dynamical gauge fields by encoding matter and gauge fields in a network of resonators coupled via three-wave mixing. Our findings provide insights into preserving necessary gauge symmetries and promote the realization of high-energy models using bosonic codes.
PHYSICAL REVIEW LETTERS
(2023)
Article
Multidisciplinary Sciences
Jesus Cruz Rojas, Tuna Demircik, Matti Jarvinen
Summary: We study cold and dense nuclear matter using the gauge/gravity duality by utilizing the Witten-Sakai-Sugimoto model and the V-QCD models. With a homogeneous approach, we focus on the popcorn transitions, which refer to phase transitions induced by changes in the layer structure of the configuration on the gravity side. Our results demonstrate that the equation of state for the homogeneous nuclear matter becomes approximately conformal at high densities, and we compare our findings with other approaches.
Article
Quantum Science & Technology
Angus Kan, Yunseong Nam
Summary: This study provides quantum gate algorithms for simulating U(1) lattice gauge theories on a fault-tolerant quantum computer and performs rigorous error analysis. The results show that U(1) lattice gauge theories in any spatial dimension can be simulated using specific non-Clifford T gates, paving the way for fault-tolerant quantum simulations of physical models closely related to the Standard Model of particle physics.
QUANTUM SCIENCE AND TECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
Thomas Kohlert, Sebastian Scherg, Xiao Li, Henrik P. Lueschen, Sankar Das Sarma, Immanuel Bloch, Monika Aidelsburger
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Multidisciplinary
Vasiliy Makhalov, Tanish Satoor, Alexandre Evrard, Thomas Chalopin, Raphael Lopes, Sylvain Nascimbene
PHYSICAL REVIEW LETTERS
(2019)
Article
Multidisciplinary Sciences
Luca Barbiero, Christian Schweizer, Monika Aidelsburger, Eugene Demler, Nathan Goldman, Fabian Grusdt
Article
Physics, Multidisciplinary
K. Wintersperger, M. Bukov, J. Naeger, S. Lellouch, E. Demler, U. Schneider, I. Bloch, N. Goldman, M. Aidelsburger
Article
Physics, Multidisciplinary
Thomas Chalopin, Tanish Satoor, Alexandre Evrard, Vasiliy Makhalov, Jean Dalibard, Raphael Lopes, Sylvain Nascimbene
Article
Physics, Multidisciplinary
Karen Wintersperger, Christoph Braun, F. Nur Unal, Andre Eckardt, Marco Di Liberto, Nathan Goldman, Immanuel Bloch, Monika Aidelsburger
Article
Physics, Multidisciplinary
Y-Q Zou, B. Bakkali-Hassani, C. Maury, E. Le Cerf, S. Nascimbene, J. Dalibard, J. Beugnon
PHYSICAL REVIEW LETTERS
(2020)
Article
Multidisciplinary Sciences
Y-Q Zou, B. Bakkali-Hassani, C. Maury, E. Le Cerf, S. Nascimbene, J. Dalibard, J. Beugnon
Summary: The authors used Ramsey interferometry to investigate Tan's contact in a uniform two-dimensional Bose gas of 87Rb atoms across the Berezinskii-Kosterlitz-Thouless superfluid transition, finding that the two-body contact is continuous at the critical point.
NATURE COMMUNICATIONS
(2021)
Article
Optics
Y-Q Zou, E. Le Cerf, B. Bakkali-Hassani, C. Maury, G. Chauveau, P. C. M. Castilho, R. Saint-Jalm, S. Nascimbene, J. Dalibard, J. Beugnon
Summary: This study demonstrates the arbitrary control of density profile of a two-dimensional Bose gas by shaping the optical potential applied to the atoms. Using a digital micromirror device (DMD) directly imaged onto the atomic cloud through a high resolution imaging system, the research achieves an optical potential with arbitrary intensity profile and micron-scale resolution. The obtained density distribution is optimized with a feedback loop based on measured absorption images of the cloud, and arbitrary spin distributions are engineered through two-photon Raman transfer between internal ground states using the same device.
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
B. Bakkali-Hassani, C. Maury, Y-Q Zou, E. Le Cerf, R. Saint-Jalm, P. C. M. Castilho, S. Nascimbene, J. Dalibard, J. Beugnon
Summary: Researchers prepared solitons deterministically using a two-component Bose gas, confirming the existence of solitonic behavior for a specific value of gN and arbitrary sizes, a hallmark of scale invariance.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Aurelien Fabre, Jean-Baptiste Bouhiron, Tanish Satoor, Raphael Lopes, Sylvain Nascimbene
Summary: This article discusses the research on the quantum Hall effect in two-dimensional electron gases. It explains Laughlin's thought experiment and the milestone experiment conducted using ultracold gas of dysprosium atoms to demonstrate the nontrivial topology of quantum Hall insulators.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Aurelien Fabre, Jean-Baptiste Bouhiron, Tanish Satoor, Raphael Lopes, Sylvain Nascimbene
Summary: This study proposes an extension of the synthetic dimension toolbox, allowing the encoding of two dimensions within an atom. It provides a useful tool for quantum simulation and the realization of artificial gauge fields.
Article
Quantum Science & Technology
D. Gonzalez-Cuadra, A. Dauphin, M. Aidelsburger, M. Lewenstein, A. Bermudez
Article
Physics, Multidisciplinary
L. Barbiero, L. Chomaz, S. Nascimbene, N. Goldman
PHYSICAL REVIEW RESEARCH
(2020)
Article
Physics, Multidisciplinary
Tanish Satoor, Aurelien Fabre, Jean-Baptiste Bouhiron, Alexandre Evrard, Raphael Lopes, Sylvain Nascimbene
Summary: This paper reports an experimental study of entanglement between two subsystems of dysprosium's electronic spin. By partitioning the spin and optically coupling it to an excited state J' = J - 1, the nonclassical behavior of qubit pairs was studied, highlighting the possibility of engineering novel types of entangled atomic ensembles.
PHYSICAL REVIEW RESEARCH
(2021)
