Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,734 papers in 12 months (-37% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Circuit designs for superconducting optoelectronic loop neurons
J. Shainline, S. Buckley, A. McCaughan +4 more·May 4, 2018
Optical communication achieves high fanout and short delay advantageous for information integration in neural systems. Superconducting detectors enable signaling with single photons for maximal energy efficiency. We present designs of superconducting...
A single-photon switch and transistor enabled by a solid-state quantum memory
Shuo Sun, Hyochul Kim, Zhouchen Luo +2 more·May 4, 2018
A single-photon gate A long-standing goal in optics is to produce a solid-state alloptical transistor, in which the transmission of light can be controlled by a single photon that acts as a gate or switch. Sun et al. used a solid-state system compris...
Interacting Hopf Algebras: the theory of linear systems
F. Zanasi·May 4, 2018
As first main contribution, this thesis characterises the PROP SVk of linear subspaces over a field k - an important domain of interpretation for circuit diagrams appearing in diverse research areas. We present by generators and equations the PROP IH...
Calculation of tunnel couplings in open gate-defined disordered quantum dot systems
J. Klos, F. Hassler, Pascal Cerfontaine +2 more·May 4, 2018
Quantum computation based on semiconductor electron-spin qubits requires high control of tunnel couplings between the quantum dots and the electron reservoirs. Potential disorder and the increasing complexity of the two-dimensional gate-defined quant...
Symmetry-Protected Self-Correcting Quantum Memories
Sam Roberts, S. Bartlett·May 3, 2018
A self-correcting quantum memory can store and protect quantum information for a time that increases without bound with the system size and without the need for active error correction. We demonstrate that symmetry can lead to self-correction in 3D s...
Classical Simulation of Intermediate-Size Quantum Circuits
Jianxin Chen, Fang Zhang, Cupjin Huang +2 more·May 3, 2018
We introduce a distributed classical simulation algorithm for general quantum circuits, and present numerical results for calculating the output probabilities of universal random circuits. We find that we can simulate more qubits to greater depth tha...
Simulating Quantum Computers Using OpenCL
Adam Kelly·May 2, 2018
Quantum computing is an emerging technology, promising a paradigm shift in computing, and allowing for speedups in many different problems. However, quantum devices are still in their early stages, most with only a small number qubits. This places a ...
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...
Simulating the dynamics of time-dependent Hamiltonians with a truncated Dyson series
M. Kieferová, A. Scherer, D. Berry·May 2, 2018
We provide a general method for efficiently simulating time-dependent Hamiltonian dynamics on a circuit-model based quantum computer. Our approach is based on approximating the truncated Dyson series of the evolution operator, extending the earlier p...
Practical Graph Bipartization with Applications in Near-Term Quantum Computing
T. Goodrich, Eric Horton, Blair D. Sullivan·May 2, 2018
We experimentally evaluate the practical state-of-the-art in graph bipartization (Odd Cycle Transversal), motivated by recent advances in near-term quantum computing hardware and the related embedding problems. We assemble a preprocessing suite of fa...
Purification of Single Photons by Temporal Heralding of Quantum Dot Sources
H. Abudayyeh, B. Lubotzky, S. Majumder +2 more·May 1, 2018
Efficient, high rate photon sources with high single photon purity are essential ingredients for quantum technologies. Single photon sources based on solid state emitters such as quantum dots are very advantageous for integrated photonic circuits, bu...
Towards a Source of Multi-Photon Entangled States for Linear Optical Quantum Computing
J. P. Lee, B. Villa, A. Bennett +5 more·Apr 30, 2018
We propose a scheme to make use of recent advances in cavity QED-enhanced resonance fluorescence from quantum dots to generate a stream of entangled and indistinguishable photons. We then demonstrate that we can optically manipulate the state of a tr...
Supervised learning with quantum-enhanced feature spaces
Vojtěch Havlíček, A. Córcoles, K. Temme +4 more·Apr 30, 2018
Machine learning and quantum computing are two technologies that each have the potential to alter how computation is performed to address previously untenable problems. Kernel methods for machine learning are ubiquitous in pattern recognition, with s...
Quantum computational finance: Monte Carlo pricing of financial derivatives
P. Rebentrost, Brajesh Gupt, T. Bromley·Apr 30, 2018
Financial derivatives are contracts that can have a complex payoff dependent upon underlying benchmark assets. In this work, we present a quantum algorithm for the Monte Carlo pricing of financial derivatives. We show how the relevant probability dis...
Big Data Quantum Support Vector Clustering
Arit Kumar Bishwas, A. Mani, V. Palade·Apr 29, 2018
Clustering is a complex process in finding the relevant hidden patterns in unlabeled datasets, broadly known as unsupervised learning. Support vector clustering algorithm is a well-known clustering algorithm based on support vector machines and Gauss...
Universal, high-fidelity quantum gates based on superadiabatic, geometric phases on a solid-state spin-qubit at room temperature
Felix Kleißler, A. Lazariev, Silvia Arroyo-Camejo·Apr 29, 2018
Geometric phases and holonomies are a promising resource for the realization of high-fidelity quantum operations in noisy devices, due to their intrinsic fault-tolerance against parametric noise. However, for a long time their practical use in quantu...
Quantum Computing Circuits and Devices
T. Humble, H. Thapliyal, Edgard Muñoz-Coreas +2 more·Apr 27, 2018
Editor’s note: As an emerging technology, quantum computing brings unique promises in creating a fundamentally different paradigm of information processing. This article reviews introductory concepts and building blocks—quantum logic gates and memory...
Bright On-Demand Source of Antibunched Microwave Photons Based on Inelastic Cooper Pair Tunneling
A. Grimm, F. Blanchet, R. Albert +8 more·Apr 27, 2018
Single-photon generation is an important proof of the underlying quantum nature of a physical process and a ubiquitous tool for scientific exploration, with applications ranging from spectroscopy and metrology to quantum computing. In the microwave r...
Explicit Lower Bounds on Strong Quantum Simulation
Cupjin Huang, M. Newman, M. Szegedy·Apr 27, 2018
We consider the problem of classical strong (amplitude-wise) simulation of <inline-formula> <tex-math notation="LaTeX">$n$ </tex-math></inline-formula>-qubit quantum circuits, and identify a subclass of simulators we call monotone. This subclass enco...
Quantum Algorithms for Connectivity and Related Problems
Michael Jarret, S. Jeffery, S. Kimmel +1 more·Apr 27, 2018
An important family of span programs, st-connectivity span programs, have been used to design quantum algorithms in various contexts, including a number of graph problems and formula evaluation problems. The complexity of the resulting algorithms dep...