Quantum computing for high-energy physics: State of the art and challenges

A Di Meglio, K Jansen, I Tavernelli, C Alexandrou… - PRX Quantum, 2024 - APS
Quantum computers offer an intriguing path for a paradigmatic change of computing in the
natural sciences and beyond, with the potential for achieving a so-called quantum …

Cold-atom quantum simulators of gauge theories

JC Halimeh, M Aidelsburger, F Grusdt, P Hauke… - Nature Physics, 2025 - nature.com
Gauge theories constitute the basis of the Standard Model and provide useful descriptions of
various phenomena in condensed matter. Realizing gauge theories on tunable tabletop …

Scalable circuits for preparing ground states on digital quantum computers: The Schwinger model vacuum on 100 qubits

RC Farrell, M Illa, AN Ciavarella, MJ Savage - PRX Quantum, 2024 - APS
The vacuum of the lattice Schwinger model is prepared on up to 100 qubits of IBM's Eagle-
processor quantum computers. A new algorithm to prepare the ground state of a gapped …

Quantum Simulation of SU(3) Lattice Yang-Mills Theory at Leading Order in Large- Expansion

AN Ciavarella, CW Bauer - Physical Review Letters, 2024 - APS
Quantum simulations of the dynamics of QCD have been limited by the complexities of
map** the continuous gauge fields onto quantum computers. By parametrizing the gauge …

Emergence of fluctuating hydrodynamics in chaotic quantum systems

JF Wienand, S Karch, A Impertro, C Schweizer… - Nature Physics, 2024 - nature.com
A fundamental principle of chaotic quantum dynamics is that local subsystems eventually
approach a thermal equilibrium state. The corresponding timescales increase with …

Observation of microscopic confinement dynamics by a tunable topological θ-angle

WY Zhang, Y Liu, Y Cheng, MG He, HY Wang… - Nature Physics, 2024 - nature.com
The topological θ-angle is central to several gauge theories in condensed-matter and high-
energy physics. For example, it is responsible for the strong CP problem in quantum …

Local readout and control of current and kinetic energy operators in optical lattices

A Impertro, S Karch, JF Wienand, SJ Huh… - Physical Review Letters, 2024 - APS
Quantum gas microscopes have revolutionized quantum simulations with ultracold atoms,
allowing one to measure local observables and snapshots of quantum states. However …

Probing quantum scars and weak ergodicity breaking through quantum complexity

B Bhattacharjee, S Sur, P Nandy - Physical Review B, 2022 - APS
Scar states are special many-body eigenstates that weakly violate the eigenstate
thermalization hypothesis (ETH). Using the explicit formalism of the Lanczos algorithm …

Many-body Hilbert space scarring on a superconducting processor

P Zhang, H Dong, Y Gao, L Zhao, J Hao, JY Desaules… - Nature Physics, 2023 - nature.com
Quantum many-body scarring (QMBS) is a recently discovered form of weak ergodicity
breaking in strongly interacting quantum systems, which presents opportunities for mitigating …

Quantum simulations of hadron dynamics in the Schwinger model using 112 qubits

RC Farrell, M Illa, AN Ciavarella, MJ Savage - Physical Review D, 2024 - APS
Hadron wave packets are prepared and time evolved in the Schwinger model using 112
qubits of IBM's 133-qubit Heron quantum computer ibm_torino. The initialization of the …