Exploring large-scale entanglement in quantum simulation

MK Joshi, C Kokail, R van Bijnen, F Kranzl, TV Zache… - Nature, 2023 - nature.com
Entanglement is a distinguishing feature of quantum many-body systems, and uncovering
the entanglement structure for large particle numbers in quantum simulation experiments is …

Approximating many-body quantum states with quantum circuits and measurements

L Piroli, G Styliaris, JI Cirac - Physical Review Letters, 2024 - APS
We introduce protocols to prepare many-body quantum states with quantum circuits assisted
by local operations and classical communication. We show that by lifting the requirement of …

Algebraic bethe circuits

A Sopena, MH Gordon, D García-Martín, G Sierra… - Quantum, 2022 - quantum-journal.org
Abstract The Algebraic Bethe Ansatz (ABA) is a highly successful analytical method used to
exactly solve several physical models in both statistical mechanics and condensed-matter …

Krylov complexity and Trotter transitions in unitary circuit dynamics

P Suchsland, R Moessner, PW Claeys - arXiv preprint arXiv:2308.03851, 2023 - arxiv.org
We investigate many-body dynamics where the evolution is governed by unitary circuits
through the lens ofKrylov complexity', a recently proposed measure of complexity and …

Integrable quantum circuits from the star-triangle relation

Y Miao, E Vernier - Quantum, 2023 - quantum-journal.org
The star-triangle relation plays an important role in the realm of exactly solvable models,
offering exact results for classical two-dimensional statistical mechanical models. In this …

Conserved charges in the quantum simulation of integrable spin chains

K Maruyoshi, T Okuda, JW Pedersen… - Journal of Physics A …, 2023 - iopscience.iop.org
When simulating the time evolution of quantum many-body systems on a digital quantum
computer, one faces the challenges of quantum noise and of the Trotter error due to time …

Simulating quench dynamics on a digital quantum computer with data-driven error mitigation

A Sopena, MH Gordon, G Sierra… - Quantum Science and …, 2021 - iopscience.iop.org
Error mitigation is likely to be key in obtaining near term quantum advantage. In this work we
present one of the first implementations of several Clifford data regression (CDR) based …

Persistent currents in ultracold gases

J Polo, WJ Chetcuti, T Haug, A Minguzzi… - arXiv preprint arXiv …, 2024 - arxiv.org
Persistent currents flowing in spatially closed tracks define one of the most iconic concepts
in mesoscopic physics. They have been studied in solid-state platforms such as superfluids …

Qudit Dicke state preparation

RI Nepomechie, D Raveh - arXiv preprint arXiv:2301.04989, 2023 - arxiv.org
Qudit Dicke states are higher-dimensional analogues of an important class of highly-
entangled completely symmetric quantum states known as (qubit) Dicke states. A circuit for …

The Bethe Ansatz as a Quantum Circuit

R Ruiz, A Sopena, MH Gordon, G Sierra, E López - Quantum, 2024 - quantum-journal.org
The Bethe ansatz represents an analytical method enabling the exact solution of numerous
models in condensed matter physics and statistical mechanics. When a global symmetry is …