Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,398 papers in 12 months (-22% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum machine learning for electronic structure calculations
Rongxin Xia, S. Kais·Mar 27, 2018
Considering recent advancements and successes in the development of efficient quantum algorithms for electronic structure calculations—alongside impressive results using machine learning techniques for computation—hybridizing quantum computing with m...
Quantum Chemistry Calculations on a Trapped-Ion Quantum Simulator
Cornelius Hempel, C. Maier, J. Romero +10 more·Mar 27, 2018
Quantum-classical hybrid algorithms are emerging as promising candidates for near-term practical applications of quantum information processors in a wide variety of fields ranging from chemistry to physics and materials science. We report on the expe...
Comparing and Integrating Constraint Programming and Temporal Planning for Quantum Circuit Compilation
Kyle E. C. Booth, M. Do, J. Christopher Beck +3 more·Mar 19, 2018
Recently, the makespan-minimization problem of compiling a general class of quantum algorithms into near-term quantum processors has been introduced to the AI community. The research demonstrated that temporal planning is a strong approach for a ...
A Hybrid Quantum-Classical Paradigm to Mitigate Embedding Costs in Quantum Annealing
A. Abbott, Cristian S. Calude, M. Dinneen +1 more·Mar 12, 2018
Despite rapid recent progress towards the development of quantum computers capable of providing computational advantages over classical computers, it seems likely that such computers will, initially at least, be required to run in a hybrid quantum-cl...
Quantum circuit learning
K. Mitarai, M. Negoro, M. Kitagawa +1 more·Mar 2, 2018
We propose a classical-quantum hybrid algorithm for machine learning on near-term quantum processors, which we call quantum circuit learning. A quantum circuit driven by our framework learns a given task by tuning parameters implemented on it. The it...
A Short Path Quantum Algorithm for Exact Optimization
M. Hastings·Feb 27, 2018
We give a quantum algorithm to exactly solve certain problems in combinatorial optimization, including weighted MAX-2-SAT as well as problems where the objective function is a weighted sum of products of Ising variables, all terms of the same degree ...
QuEST and High Performance Simulation of Quantum Computers
Tyson Jones, Anna Brown, I. Bush +1 more·Feb 22, 2018
We introduce QuEST, the Quantum Exact Simulation Toolkit, and compare it to ProjectQ, qHipster and a recent distributed implementation of Quantum++. QuEST is the first open source, hybrid multithreaded and distributed, GPU accelerated simulator of un...
One-step implementation of a hybrid Fredkin gate with quantum memories and single superconducting qubit in circuit QED and its applications.
Tongqi Liu, Bao-qing Guo, Chang-shui Yu +1 more·Feb 19, 2018
In a recent remarkable experiment [Sci. Adv. 2, e1501531 (2016)], a 3-qubit quantum Fredkin (i.e., controlled-SWAP) gate was demonstrated by using linear optics. Here we propose a simple experimental scheme by utilizing the dispersive interaction in ...
Manipulation of two quantum systems through their mutual interaction in presence of a radiation field
G. Sadiek, Wiam Al-Drees, M. Abdallah·Feb 6, 2018
In cavity QED, the mutual interaction between natural atomic systems in presence of a radiation field was ignored due to its negligible impact compared with the coupling to the field. The newly engineered artificial atomic systems (such as quantum do...
A tunable Josephson platform to explore many-body quantum optics in circuit-QED
Javier Puertas Martínez, S. Leger, Nicolas Gheeraert +10 more·Feb 2, 2018
The interaction between light and matter remains a central topic in modern physics despite decades of intensive research. Coupling an isolated emitter to a single mode of the electromagnetic field is now routinely achieved in the laboratory, and stan...
A generative modeling approach for benchmarking and training shallow quantum circuits
Marcello Benedetti, Delfina Garcia-Pintos, O. Perdomo +3 more·Jan 23, 2018
Hybrid quantum-classical algorithms provide ways to use noisy intermediate-scale quantum computers for practical applications. Expanding the portfolio of such techniques, we propose a quantum circuit learning algorithm that can be used to assist the ...
Application of fermionic marginal constraints to hybrid quantum algorithms
N. Rubin, R. Babbush, J. McClean·Jan 10, 2018
Many quantum algorithms, including recently proposed hybrid classical/quantum algorithms, make use of restricted tomography of the quantum state that measures the reduced density matrices, or marginals, of the full state. The most straightforward app...
Distributed Memory Techniques for Classical Simulation of Quantum Circuits
Ryan Larose·Jan 2, 2018
In this paper we describe, implement, and test the performance of distributed memory simulations of quantum circuits on the MSU Laconia Top500 supercomputer. Using OpenMP and MPI hybrid parallelization, we first use a distributed matrix-vector multip...
Unsupervised Machine Learning on a Hybrid Quantum Computer
J. Otterbach, R. Manenti, N. Alidoust +27 more·Dec 15, 2017
Machine learning techniques have led to broad adoption of a statistical model of computing. The statistical distributions natively available on quantum processors are a superset of those available classically. Harnessing this attribute has the potent...
A quantum algorithm to train neural networks using low-depth circuits
Guillaume Verdon, M. Broughton, J. Biamonte·Dec 14, 2017
The question has remained open if near-term gate model quantum computers will offer a quantum advantage for practical applications in the pre-fault tolerance noise regime. A class of algorithms which have shown some promise in this regard are the so-...
Superconducting gatemon qubit based on a proximitized two-dimensional electron gas
L. Casparis, M. Connolly, M. Kjaergaard +11 more·Nov 21, 2017
The coherent tunnelling of Cooper pairs across Josephson junctions (JJs) generates a nonlinear inductance that is used extensively in quantum information processors based on superconducting circuits, from setting qubit transition frequencies1 and int...
A Quantum Walk Enhanced Grover Search Algorithm for Global Optimization
Yan Wang·Nov 18, 2017
One of the significant breakthroughs in quantum computation is Grover's algorithm for unsorted database search. Recently, the applications of Grover's algorithm to solve global optimization problems have been demonstrated, where unknown optimum solut...
Measurement of a Magnonic Crystal at Millikelvin Temperatures
S. Kosen, R. Morris, A. V. Loo +1 more·Nov 2, 2017
Hybrid systems combining magnons and superconducting quantum circuits have attracted increasing interest in recent years. Magnonic crystals (MCs) are one of the building blocks of room-temperature magnonics and can be used to create devices with an e...
Optimal control of hybrid qubits: Implementing the quantum permutation algorithm
C. M. Rivera-Ruiz, E. Lima, F. Fanchini +2 more·Oct 11, 2017
The optimal quantum control theory is employed to determine electric pulses capable of producing quantum gates with high fidelity (higher than 0.9997). Particularly, these quantum gates were chosen to perform the permutation algorithm (Z. Gedik et al...
A coherent spin–photon interface in silicon
Xiao Mi, M. Benito, S. Putz +4 more·Oct 9, 2017
Electron spins in silicon quantum dots are attractive systems for quantum computing owing to their long coherence times and the promise of rapid scaling of the number of dots in a system using semiconductor fabrication techniques. Although nearest-ne...