Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,250
This Month
22
Today
0
Research Volume
13,398 papers in 12 months (-22% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Simulation of Nonequilibrium Dynamics on a Quantum Computer.
Henry Lamm, S. Lawrence·Jun 18, 2018
We present a hybrid quantum-classical algorithm for the time evolution of out-of-equilibrium thermal states. The method depends on classically computing a sparse approximation to the density matrix and, then, time-evolving each matrix element via the...
A Unification of the Coding Theory and OAQEC Perspectives on Hybrid Codes
Shayan Majidy·Jun 10, 2018
There is an advantage in simultaneously transmitting both classical and quantum information over a quantum channel compared to sending independent transmissions. The successful implementation of simultaneous transmissions of quantum and classical inf...
Addressing hard classical problems with Adiabatically Assisted Variational Quantum Eigensolvers
A. García-Sáez, J. Latorre·Jun 6, 2018
We present a hybrid classical-quantum algorithm to solve optimization problems in current quantum computers, whose basic idea is to assist variational quantum eigensolvers (VQE) with adiabatic change of the Hamiltonian. The rational for this new algo...
Towards the Practical Application of Near-Term Quantum Computers in Quantum Chemistry Simulations: A Problem Decomposition Approach
T. Yamazaki, S. Matsuura, A. Narimani +2 more·Jun 4, 2018
With the aim of establishing a framework to efficiently perform the practical application of quantum chemistry simulation on near-term quantum devices, we envision a hybrid quantum--classical framework for leveraging problem decomposition (PD) techni...
All-Electrical Control of a Hybrid Electron Spin/Valley Quantum Bit in SOI CMOS Technology
L. Bourdet, L. Hutin, B. Bertrand +14 more·Jun 1, 2018
We fabricated quantum dot devices using a standard SOI CMOS process flow and demonstrated that the spin of confined electrons could be controlled via a local electrical-field excitation, owing to intervalley spin–orbit coupling. We discuss that modul...
Performance of hybrid quantum/classical variational heuristics for combinatorial optimization
G. Nannicini·May 30, 2018
The recent literature on near-term applications for quantum computers contains several examples of the applications of hybrid quantum-classical variational approaches. This methodology can be applied to a variety of optimization problems, but its pra...
Gradient-based closed-loop quantum optimal control in a solid-state two-qubit system
Guanru Feng, F. Cho, Hemant Katiyar +4 more·May 29, 2018
Quantum optimal control can play a crucial role to realize a set of universal quantum logic gates with error rates below the threshold required for fault-tolerance. Open-loop quantum optimal control relies on accurate modeling of the quantum system u...
Hybrid Programming for Near-Term Quantum Computing Systems
A. McCaskey, E. Dumitrescu, D. Liakh +1 more·May 23, 2018
Recent computations involving quantum processing units (QPUs)have demonstrated a series of challenges inherent to hybrid classical-quantum programming, compilation, execution, and verification and validation. Despite considerable progress, system-lev...
Quantum error correction and universal gate set operation on a binomial bosonic logical qubit
Ling Hu, Yuwei Ma, W. Cai +10 more·May 23, 2018
Logical qubit encoding and quantum error correction (QEC) protocols have been experimentally demonstrated in various physical systems with multiple physical qubits, generally without reaching the break-even point, at which the lifetime of the quantum...
Variational learning of Grover's quantum search algorithm
Mauro E. S. Morales, T. Tlyachev, J. Biamonte·May 23, 2018
Given a parametrized quantum circuit such that a certain setting of these real-valued parameters corresponds to Grover's celebrated search algorithm, can a variational algorithm recover these settings and hence learn Grover's algorithm? We studied se...
Quantum neural networks to simulate many-body quantum systems
Bartłomiej Gardas, M. Rams, J. Dziarmaga·May 14, 2018
We conduct experimental simulations of many body quantum systems using a \emph{hybrid} classical-quantum algorithm. In our setup, the wave function of the transverse field quantum Ising model is represented by a restricted Boltzmann machine. This neu...
Superconducting cavity electro-optics: A platform for coherent photon conversion between superconducting and photonic circuits
Linran Fan, Chang-ling Zou, Risheng Cheng +5 more·May 11, 2018
Electro-optical chips promise a quantum link between electronic and optical circuits. Leveraging the quantum information-processing ability of superconducting circuits and long-distance distribution ability of optical photons promises the realization...
Quassical Computing
H. Edward, Cristian S. Calude·May 8, 2018
We present a class of hybrid classical systems using quantum co-processors and point out that unlike purely quantum computers, such hybrids can be both universal and Turing complete; we introduce such quantum-classical hybrids as "quassical." We disc...
Feedback control of persistent-current oscillation based on the atomic-clock technique
Deshui Yu, R. Dumke·May 2, 2018
We propose a scheme of stabilizing the persistent-current Rabi oscillation based on the flux qubit-resonator-atom hybrid structure. The LC resonator weakly interacts with the flux qubit and maps the persistent-current Rabi oscillation onto the intrar...
A quantum walk-assisted approximate algorithm for bounded NP optimisation problems
S. Marsh, Jingbo B. Wang·Apr 23, 2018
This paper describes an application of the quantum approximate optimisation algorithm (QAOA) to efficiently find approximate solutions for computational problems contained in the polynomially bounded NP optimisation complexity class (NPO PB). We cons...
Optomechanical entanglement of remote microwave cavities
S. R. Hedemann, B. D. Clader·Apr 22, 2018
We examine the entanglement properties of a system that represents two driven microwave cavities, each optomechanically coupled to two separate driven optical cavities, which are connected by a single-mode optical fiber. The results suggest that it m...
Coupling a Superconducting Quantum Circuit to a Phononic Crystal Defect Cavity
Patricio Arrangoiz-Arriola, E. Alex Wollack, M. Pechal +3 more·Apr 10, 2018
Connecting nanoscale mechanical resonators to microwave quantum circuits opens new avenues for storing, processing, and transmitting quantum information. In this work, we couple a phononic crystal cavity to a tunable superconducting quantum circuit. ...
Variational ansatz-based quantum simulation of imaginary time evolution
Sam McArdle, Tyson Jones, Suguru Endo +3 more·Apr 9, 2018
Imaginary time evolution is a powerful tool for studying quantum systems. While it is possible to simulate with a classical computer, the time and memory requirements generally scale exponentially with the system size. Conversely, quantum computers c...
Towards quantum machine learning with tensor networks
W. Huggins, P. Patil, B. Mitchell +2 more·Mar 30, 2018
Machine learning is a promising application of quantum computing, but challenges remain for implementation today because near-term devices have a limited number of physical qubits and high error rates. Motivated by the usefulness of tensor networks f...
Barren plateaus in quantum neural network training landscapes
J. McClean, S. Boixo, V. Smelyanskiy +2 more·Mar 29, 2018
Many experimental proposals for noisy intermediate scale quantum devices involve training a parameterized quantum circuit with a classical optimization loop. Such hybrid quantum-classical algorithms are popular for applications in quantum simulation,...