Article
Physics, Multidisciplinary
Vittorio Vitale, Andreas Elben, Richard Kueng, Antoine Neven, Jose Carrasco, Barbara Kraus, Peter Zoller, Pasquale Calabrese, Benoit Vermersch, Marcello Dalmonte
Summary: A study shows that symmetry-resolved information spreading is inhibited by the competition of coherent and incoherent dynamics in the presence of continuous symmetries and under ubiquitous experimental conditions. The entropy decreases as a function of time in certain quantum number sectors, indicating dynamical purification. Dynamical purification bridges between two distinct short and intermediate time regimes, characterized by log-volume and log-area entropy laws.
Article
Astronomy & Astrophysics
Erik Gustafson, Yingyue Zhu, Patrick Dreher, Norbert M. Linke, Yannick Meurice
Summary: A method is presented to estimate the time delay of a wave packet using the early and intermediate stages of collision in real-time evolution. It is shown that challenging Fourier transforms required for state preparation and measurements can be implemented in current trapped ion devices and IBM quantum computers. Results comparing quantum computations with numerical results in the quantum mechanics limit and quantum field theory formulation are discussed, with a possibility of larger scale computations in the near future.
Article
Physics, Multidisciplinary
Hongzheng Zhao, Adam Smith, Florian Mintert, Johannes Knolle
Summary: This paragraph discusses quantum many-body scars as counterexamples to the eigenstate thermalization hypothesis, highlighting their atypical characteristics and related properties.
PHYSICAL REVIEW LETTERS
(2021)
Review
Physics, Applied
Christian W. Bauer, Zohreh Davoudi, Natalie Klco, Martin J. Savage
Summary: Quantum simulations play a crucial role in understanding the properties of fundamental particles and forces of nature. This article discusses the motivations, techniques, and challenges for simulating quantum fields, focusing on advancements in simulating high-density, non-equilibrium systems of quarks, gluons, and neutrinos. While the static and dynamic properties of matter are determined by the underlying fundamental quantum fields of the standard model, the simulation of these properties exceeds the capabilities of classical computation alone. However, advancements in quantum technologies provide hope for robust simulations of quantum fields in the near future, presenting opportunities for progress in nuclear and high-energy physics.
NATURE REVIEWS PHYSICS
(2023)
Article
Astronomy & Astrophysics
Giuseppe Clemente, Arianna Crippa, Karl Jansen
Summary: This study proposes to use noisy-intermediate-scale-quantum-era quantum devices to compute short distance quantities in (2 + 1)-dimensional QED, and combine them with large volume Monte Carlo simulations and perturbation theory. By performing quantum computations, the mass gap in the small and intermediate regime can be reliably resolved and matched with corresponding results from Monte Carlo simulations.
Article
Astronomy & Astrophysics
Yannick Meurice
Summary: The article introduces the lattice compact Abelian Higgs model and quantum simulation using a ladder-shaped optical lattice in 1 + 1 dimensions. By building local Hilbert spaces with Rydberg atoms, the concept of ladder-shaped configurable arrays is proposed. Concrete proposals involving two and three atoms for constructing spin-1 spaces and analytical tools for design and building are discussed.
Article
Physics, Multidisciplinary
Sebastian Franco, Diego Rodriguez-Gomez
Summary: This article discusses quiver gauge theories with SU(N) gauge groups, which have matter with fractonic properties and a Z(N) 1-form global symmetry. The order parameter is the expectation value of Wilson loops.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Kevissen Sellapillay, Pablo Arrighi, Giuseppe Di Molfetta
Summary: The article introduces a quantum cellular automaton that coincides with 1 + 1QED and demonstrates its accuracy through the limits of the evolution equations.
SCIENTIFIC REPORTS
(2022)
Article
Physics, Multidisciplinary
Jad C. Halimeh, Haifeng Lang, Philipp Hauke
Summary: Researchers demonstrate how non-abelian gauge invariance can be reliably controlled using energy protection terms, protecting the target gauge sector from unitary gauge-breaking errors. They also show that in certain cases, single-body protection terms can robustly suppress gauge violations at all evolution timescales, exhibiting the emergence of an adjusted gauge theory.
NEW JOURNAL OF PHYSICS
(2022)
Article
Astronomy & Astrophysics
Guoyang Fu, Peng Liu, Huajie Gong, Xiao-Mei Kuang, Jian-Pin Wu
Summary: In this study, we investigate holographic information quantities in a special black brane geometry with vanishing ground-state entropy. Surprisingly, we do not observe any singular behavior of entanglement-related physical quantities in the zero-temperature limit, but find a peculiar phenomenon where entanglement entropy decreases with temperature in the low-temperature region, contrary to most holographic models. Additionally, comparison with Reissner-Nordstrom anti-de Sitter black brane geometry shows differences in the behavior of holographic mutual information and minimum cross section of the entanglement wedge, indicating different abilities in describing mixed state entanglement.
Article
Astronomy & Astrophysics
Bipasha Chakraborty, Masazumi Honda, Taku Izubuchi, Yuta Kikuchi, Akio Tomiya
Summary: In this study, we designed a protocol for digital quantum computation of a gauge theory with a topological term in Minkowski spacetime. We focused on the 1+1 dimensional quantum electrodynamics with the Schwinger model and tested our protocol on an IBM simulator. By constructing the true vacuum state using adiabatic state preparation, we were able to compute the expectation value of the fermion mass operator and compare our results with the known exact result in the massless case. Although there were deviations in the massive case, our results imply that digital quantum simulation is a promising tool to explore nonperturbative aspects of gauge theories with real time and topological terms.
Article
Physics, Multidisciplinary
Ruben Verresen, Mikhail D. Lukin, Ashvin Vishwanath
Summary: The study demonstrates the realization of Z(2) topological order in a two-dimensional array of Rydberg atoms on the ruby lattice, at specific values of the Rydberg blockade radius. Using numerical density matrix renormalization group method, the phase diagram is obtained, showing the existence of a topological quantum liquid (TQL) with experimental measurement methods proposed. The implications for exploring fault-tolerant quantum memories are also discussed.
Article
Physics, Multidisciplinary
R. R. Ferguson, L. Dellantonio, A. Al Balushi, K. Jansen, W. Dur, C. A. Muschik
Summary: This approach utilizes measurement-based quantum computation principles, involving entangled resource states and local measurements, and presents two measurement-based VQE schemes, introducing a new method for constructing variational families and translating circuit-based schemes. Both schemes offer specific advantages in terms of required resources and coherence times.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
R. Ott, T. Zache, F. Jendrzejewski, J. Berges
Summary: The study introduces a scalable analog quantum simulator for quantum electrodynamics in two dimensions, using ultracold atomic mixtures in an optical lattice. By engineering spatial plaquette terms for magnetic fields, a major obstacle towards realizing realistic gauge theories in higher dimensions is solved. The phenomenon of confinement of electric charges is discussed in the context of the pure gauge theory of compact QED within this quantum simulator.
PHYSICAL REVIEW LETTERS
(2021)
Article
Quantum Science & Technology
Abhishek Rajput, Alessandro Roggero, Nathan Wiebe
Summary: Conventional methods of quantum simulation have limitations, but we propose a framework for hybrid methods to improve the performance of interaction picture simulation. These methods show asymptotic improvements and are practical for various physical applications.
