Variational quantum simulators based on waveguide QED

C Tabares, A Muñoz de Las Heras, L Tagliacozzo… - Physical review …, 2023 - APS
Waveguide QED simulators are analog quantum simulators made by quantum emitters
interacting with one-dimensional photonic band gap materials. One of their remarkable …

Unconventional quantum optics in topological waveguide QED

M Bello, G Platero, JI Cirac, A González-Tudela - Science advances, 2019 - science.org
The discovery of topological materials has motivated recent developments to export
topological concepts into photonics to make light behave in exotic ways. Here, we predict …

Quantum Metrology in the Noisy Intermediate‐Scale Quantum Era

L Jiao, W Wu, SY Bai, JH An - Advanced Quantum …, 2023 - Wiley Online Library
Quantum metrology pursues the physical realization of higher‐precision measurements to
physical quantities than the classically achievable limit by exploiting quantum features, such …

Remote charging and degradation suppression for the quantum battery

WL Song, HB Liu, B Zhou, WL Yang, JH An - Physical Review Letters, 2024 - APS
The quantum battery (QB) makes use of quantum effects to store and supply energy, which
may outperform its classical counterpart. However, there are two challenges in this field. One …

Analogue quantum chemistry simulation

J Argüello-Luengo, A González-Tudela, T Shi, P Zoller… - Nature, 2019 - nature.com
Computing the electronic structure of molecules with high precision is a central challenge in
the field of quantum chemistry. Despite the success of approximate methods, tackling this …

Controlling atom-photon bound states in an array of Josephson-junction resonators

M Scigliuzzo, G Calajò, F Ciccarello, D Perez Lozano… - Physical Review X, 2022 - APS
Engineering the electromagnetic environment of a quantum emitter gives rise to a plethora
of exotic light-matter interactions. In particular, photonic lattices can seed long-lived atom …

Qubit-photon bound states in topological waveguides with long-range hop**s

C Vega, M Bello, D Porras, A González-Tudela - Physical Review A, 2021 - APS
Quantum emitters interacting with photonic band-gap materials lead to the appearance of
qubit-photon bound states that mediate decoherence-free, tunable emitter-emitter …

Real-time chiral dynamics from a digital quantum simulation

DE Kharzeev, Y Kikuchi - Physical Review Research, 2020 - APS
The chiral magnetic effect in a strong magnetic field can be described using the chiral
anomaly in the (1+ 1)-dimensional massive Schwinger model with a time-dependent θ term …

Hermitian and non-Hermitian topology from photon-mediated interactions

F Roccati, M Bello, Z Gong, M Ueda… - Nature …, 2024 - nature.com
As light can mediate interactions between atoms in a photonic environment, engineering it
for endowing the photon-mediated Hamiltonian with desired features, like robustness …

Detecting the critical point through entanglement in the Schwinger model

K Ikeda, DE Kharzeev, R Meyer, S Shi - Physical Review D, 2023 - APS
Using quantum simulations on classical hardware, we study the phase diagram of the
massive Schwinger model with a θ term at finite chemical potential μ. We find that the …