Unsupervised quantum machine learning for fraud detection

O Kyriienko, EB Magnusson - arxiv preprint arxiv:2208.01203, 2022 - arxiv.org
We develop quantum protocols for anomaly detection and apply them to the task of credit
card fraud detection (FD). First, we establish classical benchmarks based on supervised and …

Nonlinear Rydberg exciton-polaritons in Cu2O microcavities

M Makhonin, A Delphan, KW Song, P Walker… - Light: Science & …, 2024 - nature.com
Rydberg excitons (analogues of Rydberg atoms in condensed matter systems) are highly
excited bound electron-hole states with large Bohr radii. The interaction between them as …

Quantum remote implementation with polarization-temporal hyperentanglement

M Wang, H Guo, F Yan, T Gao - Physical Review Applied, 2023 - APS
Remote implementation of quantum operation between two distant nodes is crucial for many
quantum applications. Here we consider the implementation of an arbitrary single-photon …

The future of quantum in polariton systems: opinion

TCH Liew - Optical Materials Express, 2023 - opg.optica.org
A significant amount of control of exciton-polaritons has been achieved over the past
decades, including their creation, localization in desired modes, coupling between modes …

Superselection rules and bosonic quantum computational resources

E Descamps, N Fabre, A Saharyan, A Keller… - Physical Review Letters, 2024 - APS
We present a method to systematically identify and classify quantum optical nonclassical
states as classical or nonclassical based on the resources they create on a bosonic …

Probing many-body correlations using quantum-cascade correlation spectroscopy

L Scarpelli, C Elouard, M Johnsson, M Morassi… - Nature Physics, 2024 - nature.com
In quantum optics, the radiative quantum cascade—the consecutive emission of photons
from a ladder of energy levels—is of fundamental importance. Two-photon cascaded …

Quantum machine learning with Adaptive Boson Sampling via post-selection

F Hoch, E Caruccio, G Rodari, T Francalanci… - Nature …, 2025 - nature.com
The implementation of large-scale universal quantum computation represents a challenging
and ambitious task on the road to quantum processing of information. In recent years, an …

Deterministic optimal quantum cloning via a quantum-optical neural network

D Stanev, N Spagnolo, F Sciarrino - Physical Review Research, 2023 - APS
Quantum machine learning represents a promising approach to disclose novel possibilities
for quantum information protocols. Thus, recent efforts have been dedicated to determine …

Electrically tunable and enhanced nonlinearity of moir\'e exciton-polaritons in transition metal dichalcogenide bilayers

KW Song, O Kyriienko - arxiv preprint arxiv:2406.08263, 2024 - arxiv.org
We develop a microscopic theory for nonlinear optical response of moir\'e exciton-polaritons
in bilayers of transition metal dichalcogenides (TMDs). Our theory allows to study the tunnel …

Microscopic theory of nonlinear phase space filling in polaritonic lattices

KW Song, S Chiavazzo, O Kyriienko - Physical Review Research, 2024 - APS
We develop a full microscopic theory for a nonlinear phase space filling (NPSF) in strongly
coupled two-dimensional polaritonic lattices. Ubiquitous in polaritonic experiments, the …