Ising machines as hardware solvers of combinatorial optimization problems

N Mohseni, PL McMahon, T Byrnes - Nature Reviews Physics, 2022‏ - nature.com
Ising machines are hardware solvers that aim to find the absolute or approximate ground
states of the Ising model. The Ising model is of fundamental computational interest because …

Nanomechanical resonators: toward atomic scale

B Xu, P Zhang, J Zhu, Z Liu, A Eichler, XQ Zheng… - Acs Nano, 2022‏ - ACS Publications
The quest for realizing and manipulating ever smaller man-made movable structures and
dynamical machines has spurred tremendous endeavors, led to important discoveries, and …

Stabilization and operation of a Kerr-cat qubit

A Grimm, NE Frattini, S Puri, SO Mundhada, S Touzard… - Nature, 2020‏ - nature.com
Quantum superpositions of macroscopically distinct classical states—so-called Schrödinger
cat states—are a resource for quantum metrology, quantum communication and quantum …

Perspectives of quantum annealing: Methods and implementations

P Hauke, HG Katzgraber, W Lechner… - Reports on Progress …, 2020‏ - iopscience.iop.org
Quantum annealing is a computing paradigm that has the ambitious goal of efficiently
solving large-scale combinatorial optimization problems of practical importance. However …

Combinatorial optimization by simulating adiabatic bifurcations in nonlinear Hamiltonian systems

H Goto, K Tatsumura, AR Dixon - Science advances, 2019‏ - science.org
Combinatorial optimization problems are ubiquitous but difficult to solve. Hardware devices
for these problems have recently been developed by various approaches, including …

Observation of pairwise level degeneracies and the quantum regime of the Arrhenius law in a double-well parametric oscillator

NE Frattini, RG Cortiñas, J Venkatraman, X **ao, Q Su… - Physical Review X, 2024‏ - APS
By applying a microwave drive to a specially designed Josephson circuit, we have realized
a double-well model system: a Kerr oscillator submitted to a squeezing force. We have …

Bias-preserving gates with stabilized cat qubits

S Puri, L St-Jean, JA Gross, A Grimm, NE Frattini… - Science …, 2020‏ - science.org
The code capacity threshold for error correction using biased-noise qubits is known to be
higher than with qubits without such structured noise. However, realistic circuit-level noise …

Analog coupled oscillator based weighted Ising machine

J Chou, S Bramhavar, S Ghosh, W Herzog - Scientific reports, 2019‏ - nature.com
We report on an analog computing system with coupled non-linear oscillators which is
capable of solving complex combinatorial optimization problems using the weighted Ising …

[HTML][HTML] Recent advances in Wigner function approaches

J Weinbub, DK Ferry - Applied Physics Reviews, 2018‏ - pubs.aip.org
The Wigner function was formulated in 1932 by Eugene Paul Wigner, at a time when
quantum mechanics was in its infancy. In doing so, he brought phase space representations …

Quantum computing with rotation-symmetric bosonic codes

AL Grimsmo, J Combes, BQ Baragiola - Physical Review X, 2020‏ - APS
Bosonic rotation codes, introduced here, are a broad class of bosonic error-correcting codes
based on phase-space rotation symmetry. We present a universal quantum computing …