Papers
Live trends in quantum computing research, updated daily from arXiv.
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28,494
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Research Volume
13,582 papers in 12 months (-18% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
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...
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...
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...
Assessing the progress of trapped-ion processors towards fault-tolerant quantum computation
A. Bermudez, A. Bermudez, Xiaosi Xu +15 more·May 8, 2017
A quantitative assessment of the progress of small prototype quantum processors towards fault-tolerant quantum computation is a problem of current interest in experimental and theoretical quantum information science. We introduce a necessary and fair...
Completing the Physical Representation of Quantum Algorithms Provides a Quantitative Explanation of Their Computational Speedup
G. Castagnoli·May 7, 2017
The usual representation of quantum algorithms, limited to the process of solving the problem, is physically incomplete. We complete it in three steps: (i) extending the representation to the process of setting the problem, (ii) relativizing the exte...
Coherent oscillations inside a quantum manifold stabilized by dissipation
S. Touzard, A. Grimm, Z. Leghtas +13 more·May 5, 2017
Manipulating the state of a logical quantum bit usually comes at the expense of exposing it to decoherence. Fault-tolerant quantum computing tackles this problem by manipulating quantum information within a stable manifold of a larger Hilbert space, ...
Tree tensor network approach to simulating Shor's algorithm
E. Dumitrescu·May 2, 2017
Simulating quantum systems constructively furthers our understanding of qualitative and quantitative features which may be analytically intractable. In this letter, we directly simulate and explore the entanglement structure present in a paradigmatic...
Random access quantum information processors using multimode circuit quantum electrodynamics
R. Naik, N. Leung, S. Chakram +6 more·May 1, 2017
Qubit connectivity is an important property of a quantum processor, with an ideal processor having random access—the ability of arbitrary qubit pairs to interact directly. This a challenge with superconducting circuits, as state-of-the-art architectu...
Electromagnetically Induced Transparency in Circuit Quantum Electrodynamics with Nested Polariton States.
J. Long, H. Ku, Xian Wu +5 more·Apr 28, 2017
Quantum networks will enable extraordinary capabilities for communicating and processing quantum information. These networks require a reliable means of storage, retrieval, and manipulation of quantum states at the network nodes. A node receives one ...
Substochastic Monte Carlo Algorithms
Michael Jarret, Brad Lackey·Apr 28, 2017
In this paper we introduce and formalize Substochastic Monte Carlo (SSMC) algorithms. These algorithms, originally intended to be a better classical foil to quantum annealing than simulated annealing, prove to be worthy optimization algorithms in the...
Arbitrary Control of Entanglement between two nitrogen-vacancy center ensembles coupling to superconducting circuit qubit
Wanjun Su, Zhen‐Biao Yang, Zhi-Rong Zhong·Apr 28, 2017
We propose an effective scheme for realizing a Jaynes-Cummings (J-C) model with the collective nitrogen-vacancy center ensembles (NVE) bosonic modes in a hybrid system. Specifically, the controllable transmon qubit can alternatively interact with one...
Towards a heralded eigenstate-preserving measurement of multi-qubit parity in circuit QED
Patrick Huembeli, S. Nigg·Apr 27, 2017
Eigenstate-preserving multi-qubit parity measurements lie at the heart of stabilizer quantum error correction, which is a promising approach to mitigate the problem of decoherence in quantum computers. In this work we explore a high-fidelity, eigenst...
Hardware for dynamic quantum computing.
C. Ryan, Blake R. Johnson, D. Ristè +2 more·Apr 26, 2017
We describe the hardware, gateware, and software developed at Raytheon BBN Technologies for dynamic quantum information processing experiments on superconducting qubits. In dynamic experiments, real-time qubit state information is fed back or fed for...
Coherence as a Unit Resource for Quantum Error Correction
K. C. Tan, S. Omkar, H. Jeong·Apr 25, 2017
In this paper we study an error correcting protocol that specifically derives its error correcting properties from elementary units of coherence. The entire protocol from beginning to end is performed using non-coherence increasing operations, result...
Autonomous calibration of single spin qubit operations
Florian Frank, Thomas Unden, J. Zoller +5 more·Apr 21, 2017
Fully autonomous precise control of qubits is crucial for quantum information processing, quantum communication, and quantum sensing applications. It requires minimal human intervention on the ability to model, to predict, and to anticipate the quant...
Quantum information density scaling and qubit operation time constraints of CMOS silicon-based quantum computer architectures
D. Rotta, F. Sebastiano, E. Charbon +1 more·Apr 20, 2017
Even the quantum simulation of an apparently simple molecule such as Fe2S2 requires a considerable number of qubits of the order of 106, while more complex molecules such as alanine (C3H7NO2) require about a hundred times more. In order to assess suc...
Optimal attacks on qubit-based Quantum Key Recycling
D. Leermakers, B. Škorić·Apr 15, 2017
Quantum Key Recycling (QKR) is a quantum cryptographic primitive that allows one to reuse keys in an unconditionally secure way. By removing the need to repeatedly generate new keys, it improves communication efficiency. Škorić and de Vries recently ...
Scalable on-chip quantum state tomography
James G. Titchener, M. Gräfe, R. Heilmann +3 more·Apr 12, 2017
Quantum information systems are on a path to vastly exceed the complexity of any classical device. The number of entangled qubits in quantum devices is rapidly increasing, and the information required to fully describe these systems scales exponentia...