Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,851 papers in 12 months (-35% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Mechanical on-chip microwave circulator
Shabir Barzanjeh, M. Wulf, M. Peruzzo +4 more·Jun 1, 2017
Nonreciprocal circuit elements form an integral part of modern measurement and communication systems. Mathematically they require breaking of time-reversal symmetry, typically achieved using magnetic materials and more recently using the quantum Hall...
TASI Lectures on the Emergence of Bulk Physics in AdS/CFT
D. Harlow·Jun 1, 2017
These lectures review recent developments in our understanding of the emergence of local bulk physics in AdS/CFT. The primary topics are sufficient conditions for a conformal field theory to have a semiclassical dual, bulk reconstruction, the quantum...
Electronic Structure Calculations and the Ising Hamiltonian.
Rongxin Xia, Teng Bian, S. Kais·Jun 1, 2017
Obtaining exact solutions to the Schrödinger equation for atoms, molecules, and extended systems continues to be a "Holy Grail" problem which the fields of theoretical chemistry and physics have been striving to solve since inception. Recent breakthr...
Low-Depth Quantum Simulation of Materials
R. Babbush, N. Wiebe, J. McClean +3 more·May 31, 2017
Quantum simulation of the electronic structure problem is one of the most researched applications of quantum computing. The majority of quantum algorithms for this problem encode the wavefunction using N Gaussian orbitals, leading to Hamiltonians wit...
Effect of unbalanced and common losses in quantum photonic integrated circuits
Ming Li, Chang-ling Zou, G. Guo +1 more·May 30, 2017
Loss is inevitable for the optical system due to absorption of materials, scattering caused by the defects and surface roughness. In quantum optical circuits, the loss can not only reduce the intensity of signal, but also affect the performance of qu...
Efficient algorithms for the dynamics of large and infinite classical central spin models
B. Fauseweh, P. Schering, J. Hudepohl +1 more·May 30, 2017
We investigate the time dependence of correlation functions in the central spin model, which describes the electron or hole spin confined in a quantum dot, interacting with a bath of nuclear spins forming the Overhauser field. For large baths, a clas...
Optimization of Measurement Device Independent Scarani-Ac´ın-Ribordy-Gisin Protocol
C. Tannous, J. Langlois·May 27, 2017
The measurement device independent (MDI) Quantum Key Distribution (QKD) is a practically implementable method for transmitting secret keys between respective partners performing quantum communication. SARG04 (Scarani-Ac\`{i}n-Ribordy-Gisin 2004) is a...
Logical and Inequality Implications for Reducing the Size and Complexity of Quadratic Unconstrained Binary Optimization Problems
F. Glover, Mark W. Lewis, G. Kochenberger·May 26, 2017
The quadratic unconstrained binary optimization (QUBO) problem arises in diverse optimization applications ranging from Ising spin problems to classical problems in graph theory and binary discrete optimization. The use of preprocessing to transform ...
Experimental Demonstration of Fault-Tolerant State Preparation with Superconducting Qubits.
M. Takita, Andrew W. Cross, A. Córcoles +2 more·May 25, 2017
Robust quantum computation requires encoding delicate quantum information into degrees of freedom that are hard for the environment to change. Quantum encodings have been demonstrated in many physical systems by observing and correcting storage error...
Device-independent Point Estimation from Finite Data
Pei-Sheng Lin, D. Rosset, Yanbao Zhang +2 more·May 25, 2017
The device-independent approach to physics is one where conclusions are drawn directly from the observed correlations between measurement outcomes. In quantum information, this approach allows one to make strong statements about the properties of the...
Simple digital quantum algorithm for symmetric first-order linear hyperbolic systems
F. Fillion-Gourdeau, E. Lorin·May 25, 2017
This paper is devoted to the derivation of a digital quantum algorithm for the Cauchy problem for symmetric first-order linear hyperbolic systems, thanks to the reservoir technique. The reservoir technique is a method designed to avoid artificial dif...
The tessellation problem of quantum walks
A. Abreu, L. Cunha, Tharso D. Fernandes +5 more·May 25, 2017
Quantum walks have received a great deal of attention recently because they can be used to develop new quantum algorithms and to simulate interesting quantum systems. In this work, we focus on a model called staggered quantum walk, which employs adva...
Compiling quantum circuits to realistic hardware architectures using temporal planners
D. Venturelli, M. Do, E. Rieffel +1 more·May 24, 2017
To run quantum algorithms on emerging gate-model quantum hardware, quantum circuits must be compiled to take into account constraints on the hardware. For near-term hardware, with only limited means to mitigate decoherence, it is critical to minimize...
Superposition of Macroscopically Distinct States in Adiabatic Quantum Computation
T. Yuge·May 23, 2017
What are the conditions for adiabatic quantum computation (AQC) to outperform classical computation? Although there exist several quantum adiabatic algorithms achieving the strong quantum speedup, the essential keys to their speedups are still unclea...
Geometrically-controlled polarisation processing in femtosecond-laser-written photonic circuits
I. Pitsios, F. Samara, G. Corrielli +2 more·May 22, 2017
Polarisation of light is a powerful and widely used degree of freedom to encode information, both in classical and quantum applications. In particular, quantum information technologies based on photons are being revolutionised by the use of integrate...
Machine-learning-assisted correction of correlated qubit errors in a topological code
P. Baireuther, T. O’Brien, B. Tarasinski +1 more·May 22, 2017
A fault-tolerant quantum computation requires an efficient means to detect and correct errors that accumulate in encoded quantum information. In the context of machine learning, neural networks are a promising new approach to quantum error correction...
On the impact of quantum computing technology on future developments in high-performance scientific computing
M. Möller, C. Vuik·May 21, 2017
Quantum computing technologies have become a hot topic in academia and industry receiving much attention and financial support from all sides. Building a quantum computer that can be used practically is in itself an outstanding challenge that has bec...
Demonstration of a Scaling Advantage for a Quantum Annealer over Simulated Annealing
T. Albash, Daniel A. Lidar·May 21, 2017
The observation of an unequivocal quantum speedup remains an elusive objective for quantum computing. The D-Wave quantum annealing processors have been at the forefront of experimental attempts to address this goal, given their relatively large numbe...
Fault-tolerant quantum computation with few qubits
R. Chao, B. Reichardt·May 15, 2017
Reliable qubits are difficult to engineer, but standard fault-tolerance schemes use seven or more physical qubits to encode each logical qubit, with still more qubits required for error correction. The large overhead makes it hard to experiment with ...
A Proposal for Quantum Fisher Information Optimization and its Relation with Entanglement Measures
Volkan Erol·May 12, 2017
Studies about Quantum Information Theory continue actively in many research institutions. Very recently, pratical setups of large scale quantum computers are widely studied e.g. quantum repeaters, memories and processors. Entanglement provides us a c...