Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,406 papers in 12 months (-22% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Teleportation-assisted optical controlled-sign gates
Fabian Ewert, P. Loock·Aug 29, 2017
Reliable entangling gates for qubits encoded in single-photon states represent a major challenge on the road to scalable quantum computing architectures based on linear optics. In this work, we present two approaches to develop high-fidelity, near-de...
Three-Dimensional Color Code Thresholds via Statistical-Mechanical Mapping.
Aleksander Kubica, M. Beverland, F. Brandão +2 more·Aug 23, 2017
Three-dimensional (3D) color codes have advantages for fault-tolerant quantum computing, such as protected quantum gates with relatively low overhead and robustness against imperfect measurement of error syndromes. Here we investigate the storage thr...
Integrated-optics heralded controlled-NOT gate for polarization-encoded qubits
Jonas Zeuner, Aditya N. Sharma, Max Tillmann +5 more·Aug 22, 2017
Recent progress in integrated-optics technology has made photonics a promising platform for quantum networks and quantum computation protocols. Integrated optical circuits are characterized by small device footprints and unrivalled intrinsic interfer...
Classical multiparty computation using quantum resources
M. Clementi, Anna Pappa, A. Eckstein +3 more·Aug 21, 2017
In this work, we demonstrate a way to perform classical multiparty computing among parties with limited computational resources. Our method harnesses quantum resources to increase the computational power of the individual parties. We show how a set o...
Coherent Control of a Single Trapped Rydberg Ion.
Gerard Higgins, Fabian Pokorny, Chi Zhang +2 more·Aug 21, 2017
Trapped Rydberg ions are a promising novel approach to quantum computing and simulations. They are envisaged to combine the exquisite control of trapped ion qubits with the fast two-qubit Rydberg gates already demonstrated in neutral atom experiments...
Braiding by Majorana tracking and long-range CNOT gates with color codes
D. Litinski, F. Oppen·Aug 16, 2017
Color-code quantum computation seamlessly combines Majorana-based hardware with topological error correction. Specifically, as Clifford gates are transversal in two-dimensional color codes, they enable the use of the Majoranas' non-Abelian statistics...
Conditional displacement interaction in ultrastrong-coupling regime
Gangcheng Wang, Qingyong Wang, Yimin Wang +3 more·Aug 15, 2017
We investigate the realization of conditional displacement interaction in the transversal direction in ultrastrongly coupled circuit quantum electrodynamics by adjusting parameters of external magnetic fields. The special interaction is derived in th...
A programmable two-qubit quantum processor in silicon
T. Watson, S. Phillips, E. Kawakami +9 more·Aug 14, 2017
Now that it is possible to achieve measurement and control fidelities for individual quantum bits (qubits) above the threshold for fault tolerance, attention is moving towards the difficult task of scaling up the number of physical qubits to the larg...
Analysis of quantum information processors using quantum metrology
Mark J. Kandula, P. Kok·Aug 13, 2017
Physical implementations of quantum information processing devices are generally not unique, and we are faced with the problem of choosing the best implementation. Here, we consider the sensitivity of quantum devices to variations in their different ...
Fourier analysis of sampling from noisy chaotic quantum circuits
S. Boixo, V. Smelyanskiy, H. Neven·Aug 6, 2017
Sampling from the output distribution of chaotic quantum evolutions, and of pseudo-random universal quantum circuits in particular, has been proposed as a prominent milestone for near-term quantum supremacy. The same paper notes that chaotic distribu...
Two-step approach to scheduling quantum circuits
G. Guerreschi, Jongsoo Park·Jul 31, 2017
As the effort to scale up existing quantum hardware proceeds, it becomes necessary to schedule quantum gates in a way that minimizes the number of operations. There are three constraints that have to be satisfied: the order or dependency of the quant...
Rewiring stabilizer codes
K. Colladay, E. Mueller·Jul 28, 2017
We present an algorithm for manipulating quantum information via a sequence of projective measurements. We frame this manipulation in the language of stabilizer codes: a quantum computation approach in which errors are prevented and corrected in part...
Use of global interactions in efficient quantum circuit constructions
D. Maslov, Y. Nam·Jul 20, 2017
In this paper we study the ways to use a global entangling operator to efficiently implement circuitry common to a selection of important quantum algorithms. In particular, we focus on the circuits composed with global Ising entangling gates and arbi...
A quantum algorithm for greatest common divisor problem
Wen Wang, Xu Jiang, Liang-zhu Mu +1 more·Jul 20, 2017
We present a quantum algorithm solving the greatest common divisor (GCD) problem. This quantum algorithm possesses similar computational complexity with classical algorithms, such as the well-known Euclidean algorithm for GCD. This algorithm is an ap...
Electro-optic routing of photons from a single quantum dot in photonic integrated circuits
L. Midolo, S. L. Hansen, Weili Zhang +6 more·Jul 20, 2017
Recent breakthroughs in solid-state photonic quantum technologies enable the generation and detection of single photons with near-unity efficiency as required for a range of photonic quantum technologies. The lack of methods to simultaneously generat...
Blueprint for fault-tolerant quantum computation with Rydberg atoms
J. Auger, S. Bergamini, D. Browne·Jul 20, 2017
We present a blueprint for building a fault-tolerant universal quantum computer with Rydberg atoms. Our scheme, which is based on the surface code, uses individually addressable, optically trapped atoms as qubits and exploits electromagnetically indu...
Computation of Molecular Spectra on a Quantum Processor with an Error-Resilient Algorithm
J. Colless, V. Ramasesh, D. Dahlen +5 more·Jul 20, 2017
© 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International license. Further distribution of...
Efficient eigenvalue determination for arbitrary Pauli products based on generalized spin-spin interactions
D. Leibfried, D. Wineland·Jul 12, 2017
Abstract Effective spin-spin interactions between qubits enable the determination of the eigenvalue of an arbitrary Pauli product of dimension N with a constant, small number of multi-qubit gates that is independent of N and encodes the eigenvalue in...
Efficient experimental design of high-fidelity three-qubit quantum gates via genetic programming
Amit Devra, Prithviraj Prabhu, Harpreet Singh +2 more·Jul 2, 2017
We have designed efficient quantum circuits for the three-qubit Toffoli (controlled–controlled-NOT) and the Fredkin (controlled-SWAP) gate, optimized via genetic programming methods. The gates thus obtained were experimentally implemented on a three-...
Low-overhead code concatenation approaches for universal quantum computation
E. Nikahd, M. S. Zamani, M. Sedighi·Jul 1, 2017
Fault-tolerant quantum circuit design can be done by using a set of transversal gates. However, as there is no quantum error correction code with a universal set of transversal gates, several approaches have been proposed which, in combination of tra...