Early fault-tolerant quantum algorithms in practice: Application to ground-state energy estimation

O Kiss, U Azad, B Requena, A Roggero… - arxiv preprint arxiv …, 2024 - arxiv.org
We explore the practicality of early fault-tolerant quantum algorithms, focusing on ground-
state energy estimation problems. Specifically, we address the computation of the …

Measuring the Loschmidt amplitude for finite-energy properties of the Fermi-Hubbard model on an ion-trap quantum computer

K Hémery, K Ghanem, E Crane, SL Campbell… - PRX Quantum, 2024 - APS
Calculating the equilibrium properties of condensed-matter systems is one of the promising
applications of near-term quantum computing. Recently, hybrid quantum-classical time …

Direct Estimation of the Density of States for Fermionic Systems

ML Goh, B Koczor - arxiv preprint arxiv:2407.03414, 2024 - arxiv.org
Simulating time evolution is one of the most natural applications of quantum computers and
is thus one of the most promising prospects for achieving practical quantum advantage …

[HTML][HTML] Simulating spin biology using a digital quantum computer: Prospects on a near-term quantum hardware emulator

PH Alvarez, FT Chowdhury, LD Smith, TJ Brokowski… - APL Quantum, 2024 - pubs.aip.org
Understanding the intricate quantum spin dynamics of radical pair reactions is crucial for
unraveling the underlying nature of chemical processes across diverse scientific domains. In …

Spin response of neutron matter in ab initio approach

JE Sobczyk, W Jiang, A Roggero - arxiv preprint arxiv:2407.20986, 2024 - arxiv.org
We propose a general method embedded in the ab initio nuclear framework to reconstruct
linear response functions and calculate sum rules. Within our approach, based on the …

Quantum many-body simulation of finite-temperature systems with sampling a series expansion of a quantum imaginary-time evolution

N Matsumoto, S Tsutsui, YO Nakagawa… - arxiv preprint arxiv …, 2024 - arxiv.org
Simulating thermal-equilibrium properties at finite temperature is crucial for studying
quantum many-body systems. Quantum computers are expected to enable us to simulate …

Simulating Floquet scrambling circuits on trapped-ion quantum computers

K Seki, Y Kikuchi, T Hayata, S Yunoki - arxiv preprint arxiv:2405.07613, 2024 - arxiv.org
Complex quantum many-body dynamics spread initially localized quantum information
across the entire system. Information scrambling refers to such a process, whose simulation …

Hilbert Subspace Ergodicity

L Logaric, J Goold, S Dooley - arxiv preprint arxiv:2411.14359, 2024 - arxiv.org
Ergodicity has been one of the fundamental concepts underpinning our understanding of
thermalisation in isolated systems since the first developments in classical statistical …

arxiv: Early Fault-Tolerant Quantum Algorithms in Practice: Application to Ground-State Energy Estimation

O Kiss, JM Arrazola, D Wakeham, A Roggero… - 2024 - cds.cern.ch
We explore the practicality of early fault-tolerant quantum algorithms, focusing on ground-
state energy estimation problems. Specifically, we address the computation of the …