Noisy intermediate-scale quantum algorithms

K Bharti, A Cervera-Lierta, TH Kyaw, T Haug… - Reviews of Modern …, 2022 - APS
A universal fault-tolerant quantum computer that can efficiently solve problems such as
integer factorization and unstructured database search requires millions of qubits with low …

Ultrastrong coupling regimes of light-matter interaction

P Forn-Díaz, L Lamata, E Rico, J Kono, E Solano - Reviews of Modern Physics, 2019 - APS
Recent experiments have demonstrated that light and matter can mix together to an extreme
degree, and previously uncharted regimes of light-matter interactions are currently being …

Spectral classification of coupling regimes in the quantum Rabi model

DZ Rossatto, CJ Villas-Bôas, M Sanz, E Solano - Physical Review A, 2017 - APS
The quantum Rabi model is in the scientific spotlight due to the recent theoretical and
experimental progress. Nevertheless, a full-fledged classification of its coupling regimes …

Gauge ambiguities imply Jaynes-Cummings physics remains valid in ultrastrong coupling QED

A Stokes, A Nazir - Nature communications, 2019 - nature.com
Ultrastrong-coupling between two-level systems and radiation is important for both
fundamental and applied quantum electrodynamics (QED). Such regimes are identified by …

Tunable anisotropic quantum Rabi model via a magnon–spin-qubit ensemble

IC Skogvoll, J Lidal, J Danon, A Kamra - Physical Review Applied, 2021 - APS
The ongoing rapid progress towards quantum technologies relies on new hybrid platforms
optimized for specific quantum computation and communication tasks, and researchers are …

Characteristic spectra of circuit quantum electrodynamics systems from the ultrastrong-to the deep-strong-coupling regime

F Yoshihara, T Fuse, S Ashhab, K Kakuyanagi, S Saito… - Physical Review A, 2017 - APS
We report on spectra of circuit-quantum-electrodynamics (QED) systems in an intermediate
regime that lies between the ultrastrong-and the deep-strong-coupling regimes, which have …

Quantum Rabi dynamics of trapped atoms far in the deep strong coupling regime

J Koch, GR Hunanyan, T Ockenfels, E Rico… - Nature …, 2023 - nature.com
The coupling of a two-level system with an electromagnetic field, whose fully quantized
version is the quantum Rabi model, is among the central topics of quantum physics. When …

Signatures of dissipation driven quantum phase transition in rabi model

G De Filippis, A de Candia, G Di Bello, CA Perroni… - Physical Review Letters, 2023 - APS
By using the worldline Monte Carlo technique, matrix product state, and a variational
approach à la Feynman, we investigate the equilibrium properties and relaxation features of …

Role of quantum correlations in light-matter quantum heat engines

GA Barrios, F Albarrán-Arriagada, FA Cárdenas-López… - Physical Review A, 2017 - APS
We study a quantum Otto engine embedding a working substance composed of a two-level
system interacting with a harmonic mode. The physical properties of the substance are …

Learning quantum dynamics with latent neural ordinary differential equations

M Choi, D Flam-Shepherd, TH Kyaw, A Aspuru-Guzik - Physical Review A, 2022 - APS
The core objective of machine-assisted scientific discovery is to learn physical laws from
experimental data without prior knowledge of the systems in question. In the area of …