Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,937
This Month
336
Today
0
Research Volume
15,920 papers in 12 months (-33% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
The role of master clock stability in scalable quantum information processing
H. Ball, W. Oliver, M. Biercuk·Feb 15, 2016
Experimentalists seeking to improve the coherent lifetimes of quantum bits have generally focused on mitigating decoherence mechanisms through, for example, improvements to qubit designs and materials, and system isolation from environmental perturba...
Precursors, gauge invariance, and quantum error correction in AdS/CFT
Ben Freivogel, R. Jefferson, L. Kabir·Feb 15, 2016
A puzzling aspect of the AdS/CFT correspondence is that a single bulk operator can be mapped to multiple different boundary operators, or precursors. By improving upon a recent model of Mintun, Polchinski, and Rosenhaus, we demonstrate explicitly how...
One-way Quantum Deficit and Decoherence for Two-qubit X States
B. Ye, Yao-Kun Wang, S. Fei·Feb 11, 2016
We study one-way quantum deficit of two-qubit X states systematically from analytical derivations. An effective approach to compute one-way quantum deficit of two-qubit X states has been provided. Analytical results are presented as for detailed exam...
Valley-enhanced fast relaxation of gate-controlled donor qubits in silicon
P. Boross, Gábor Széchenyi, A. Palyi·Feb 11, 2016
Gate control of donor electrons near interfaces is a generic ingredient of donor-based quantum computing. Here, we address the question: how is the phonon-assisted qubit relaxation time T1 affected as the electron is shuttled between the donor and th...
Intrinsic errors in transporting a single-spin qubit through a double quantum dot
Xiao Li, Edwin Barnes, J. Kestner +1 more·Feb 9, 2016
Coherent spatial transport or shuttling of a single electron spin through semiconductor nanostructures is an important ingredient in many spintronic and quantum computing applications. In this work we analyze the possible errors in solid-state quantu...
Co-designing a scalable quantum computer with trapped atomic ions
K. Brown, Jungsang Kim, C. Monroe·Feb 9, 2016
The first generation of quantum computers are on the horizon, fabricated from quantum hardware platforms that may soon be able to tackle certain tasks that cannot be performed or modelled with conventional computers. These quantum devices will not li...
Error Sensitivity to Environmental Noise in Quantum Circuits for Chemical State Preparation.
Nicolas P. D. Sawaya, M. Smelyanskiy, J. McClean +1 more·Feb 4, 2016
Calculating molecular energies is likely to be one of the first useful applications to achieve quantum supremacy, performing faster on a quantum than a classical computer. However, if future quantum devices are to produce accurate calculations, error...
Correction of data and syndrome errors by stabilizer codes
A. Ashikhmin, C. Lai, T. Brun·Feb 4, 2016
Performing active quantum error correction to protect fragile quantum states highly depends on the correctness of error information-error syndromes. To obtain reliable error syndromes using imperfect physical circuits, we propose the idea of quantum ...
Single-photon driven high-order sideband transitions in an ultrastrongly coupled circuit quantum electrodynamics system
Zhen Chen, Yimin Wang, Tiefu Li +10 more·Feb 4, 2016
We report the experimental observation of high-order sideband transitions at the single-photon level in a quantum circuit system of a flux qubit ultrastrongly coupled to a coplanar waveguide resonator. With the coupling strength reaching 10% of the r...
Superconducting quantum metamaterials as an active lasing medium: Effects of disorder
M. Koppenhofer, M. Marthaler, G. Schon·Feb 3, 2016
A metamaterial formed by superconducting circuits or quantum dots can serve as active lasing medium when coupled to a microwave resonator. For these artificial atoms, in contrast to real atoms, variations in their parameters cannot be avoided. In thi...
Deterministic Single-Phonon Source Triggered by a Single Photon.
I. Söllner, L. Midolo, P. Lodahl·Feb 2, 2016
We propose a scheme that enables the deterministic generation of single phonons at gigahertz frequencies triggered by single photons in the near infrared. This process is mediated by a quantum dot embedded on chip in an optomechanical circuit, which ...
Superconducting qubit–oscillator circuit beyond the ultrastrong-coupling regime
F. Yoshihara, T. Fuse, S. Ashhab +3 more·Feb 1, 2016
A circuit that pairs a flux qubit with an LC oscillator via Josephson junctions pushes the coupling between light to matter to uncharted territory, with the potential for new applications in quantum technologies. The interaction between an atom and t...
Towards Quantum Simulation of Chemical Dynamics with Prethreshold Superconducting Qubits
P. Stancil, H. You, A. Cook +2 more·Jan 30, 2016
The single excitation subspace (SES) method for universal quantum simulation is investigated for a number of diatomic molecular collision complexes. Assuming a system of $n$ tunably-coupled, and fully-connected superconducting qubits, computations ar...
New class of quantum error-correcting codes for a bosonic mode
M. Michael, M. Silveri, R. T. Brierley +4 more·Jan 29, 2016
We construct a new class of quantum error-correcting codes for a bosonic mode which are advantageous for applications in quantum memories, communication, and scalable computation. These 'binomial quantum codes' are formed from a finite superposition ...
GaAs integrated quantum photonics: Towards compact and multi‐functional quantum photonic integrated circuits
C. Dietrich, A. Fiore, M. Thompson +2 more·Jan 26, 2016
The recent progress in integrated quantum optics has set the stage for the development of an integrated platform for quantum information processing with photons, with potential applications in quantum simulation. Among the different material platform...
Single-ion microwave near-field quantum sensor
M. Wahnschaffe, H. Hahn, G. Zarantonello +5 more·Jan 25, 2016
We develop an intuitive model of 2D microwave near-fields in the unusual regime of centimeter waves localized to tens of microns. Close to an intensity minimum, a simple effective description emerges with five parameters that characterize the strengt...
Notch filtering the nuclear environment of a spin qubit.
F. Malinowski, F. Martins, Peter D. Nissen +8 more·Jan 25, 2016
Electron spins in gate-defined quantum dots provide a promising platform for quantum computation. In particular, spin-based quantum computing in gallium arsenide takes advantage of the high quality of semiconducting materials, reliability in fabricat...
Quantum Simulation of Molecular Collisions in the Time-Dependent Formulation
A. Sornborger, P. Stancil, M. Geller·Jan 24, 2016
Quantum particle simulations have largely been based on time-independent, split-operator schemes in which kinetic and potential operators are interwoven to provide accurate approximations to system dynamics. These simulations can be very expensive in...
On-chip coherent conversion of photonic quantum entanglement between different degrees of freedom
Lantian Feng, Ming Zhang, Zhi-yuan Zhou +8 more·Jan 23, 2016
In the quantum world, a single particle can have various degrees of freedom to encode quantum information. Controlling multiple degrees of freedom simultaneously is necessary to describe a particle fully and, therefore, to use it more efficiently. He...
Superdense Coding Interleaved with Forward Error Correction
Ronald J. Sadlier, T. Humble·Jan 23, 2016
Abstract Superdense coding promises increased classical capacity and communication security but this advantage may be undermined by noise in the quantum channel. We present a numerical study of how forward error correction (FEC) applied to the encode...