Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,586 papers in 12 months (-18% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Artificial Life in an IBM Quantum Computer
U. Alvarez-Rodriguez, M. Sanz, L. Lamata +1 more·Nov 26, 2017
We present the first experimental realization of a quantum artificial life algorithm in a quantum computer. The quantum biomimetic protocol encodes tailored quantum behaviors belonging to living systems, namely, self-replication, mutation, interactio...
Superconducting gatemon qubit based on a proximitized two-dimensional electron gas
L. Casparis, M. Connolly, M. Kjaergaard +11 more·Nov 21, 2017
The coherent tunnelling of Cooper pairs across Josephson junctions (JJs) generates a nonlinear inductance that is used extensively in quantum information processors based on superconducting circuits, from setting qubit transition frequencies1 and int...
Robust quantum state transfer via topological edge states in superconducting qubit chains
F. Mei, Gang Chen, L. Tian +2 more·Nov 21, 2017
Robust quantum state transfer (QST) is an indispensable ingredient in scalable quantum information processing. Here we present an experimentally feasible mechanism for realizing robust QST via topologically protected edge states in superconducting qu...
Molecular spin qudits for quantum algorithms.
E. Moreno‐Pineda, C. Godfrin, F. Balestro +2 more·Nov 20, 2017
Presently, one of the most ambitious technological goals is the development of devices working under the laws of quantum mechanics. One prominent target is the quantum computer, which would allow the processing of information at quantum level for pur...
Quantum algorithms to simulate many-body physics of correlated fermions.
Zhang Jiang, Kevin J Sung, K. Kechedzhi +2 more·Nov 15, 2017
Simulating strongly correlated fermionic systems is notoriously hard on classical computers. An alternative approach, as proposed by Feynman, is to use a quantum computer. Here, we discuss quantum simulation of strongly correlated fermionic systems. ...
Quantum information in quantum cognition
N. Y. Halpern, E. Crosson·Nov 13, 2017
Matthew Fisher recently postulated a mechanism by which quantum phenomena could influence cognition: Phosphorus nuclear spins may resist decoherence for long times. The spins would serve as biological qubits. The qubits may resist decoherence longer ...
A crossbar network for silicon quantum dot qubits
Ruoyu Li, L. Petit, D. P. Franke +10 more·Nov 10, 2017
Quantum dots take a shortcut toward practical quantum information. The spin states of single electrons in gate-defined quantum dots satisfy crucial requirements for a practical quantum computer. These include extremely long coherence times, high-fide...
All-Microwave Control and Dispersive Readout of Gate-Defined Quantum Dot Qubits in Circuit Quantum Electrodynamics.
P. Scarlino, D. V. Woerkom, A. Stockklauser +8 more·Nov 6, 2017
Developing fast and accurate control and readout techniques is an important challenge in quantum information processing with semiconductor qubits. Here, we study the dynamics and the coherence properties of a GaAs/AlGaAs double quantum dot charge qub...
Detecting multipartite entanglement structure with minimal resources
You Zhou, Qi Zhao, Xiao Yuan +1 more·Nov 6, 2017
Recently, there are tremendous developments on the number of controllable qubits in several quantum computing systems. For these implementations, it is crucial to determine the entanglement structure of the prepared multipartite quantum state as a ba...
Quantum superiority for verifying NP-complete problems with linear optics
J. Arrazola, E. Diamanti, Iordanis Kerenidis·Nov 6, 2017
Demonstrating quantum superiority for some computational task will be a milestone for quantum technologies and would show that computational advantages are possible not only with a universal quantum computer but with simpler physical devices. Linear ...
Online scheduled execution of quantum circuits protected by surface codes
A. Paler, A. Fowler, R. Wille·Nov 4, 2017
Quantum circuits are the preferred formalism for expressing quantum information processing tasks. Quantum circuit design automation methods mostly use a waterfall approach and consider that high level circuit descriptions are hardware agnostic. This ...
Measurement of a Magnonic Crystal at Millikelvin Temperatures
S. Kosen, R. Morris, A. V. Loo +1 more·Nov 2, 2017
Hybrid systems combining magnons and superconducting quantum circuits have attracted increasing interest in recent years. Magnonic crystals (MCs) are one of the building blocks of room-temperature magnonics and can be used to create devices with an e...
Universal quantum computing using (Z d ) 3 symmetry-protected topologically ordered states
Yanzhu Chen, A. Prakash, T. Wei·Oct 31, 2017
Measurement-based quantum computation describes a scheme where entanglement of resource states is utilized to simulate arbitrary quantum gates via local measurements. Recent works suggest that symmetry-protected topologically non-trivial, short-range...
Cosmological constant as quantum error correction from generalised gauge invariance in double field theory
A. Patrascu·Oct 29, 2017
The holographic principle and its realisation as the AdS/CFT correspondence leads to the existence of the so called precursor operators. These are boundary operators that carry non-local information regarding events occurring deep inside the bulk and...
Qubit models of weak continuous measurements: markovian conditional and open-system dynamics
J. Gross, C. Caves, G. Milburn +1 more·Oct 26, 2017
In this paper we approach the theory of continuous measurements and the associated unconditional and conditional (stochastic) master equations from the perspective of quantum information and quantum computing. We do so by showing how the continuous-t...
Operator Spreading and the Emergence of Dissipative Hydrodynamics under Unitary Evolution with Conservation Laws
V. Khemani, A. Vishwanath, D. Huse·Oct 26, 2017
We study the scrambling of local quantum information in chaotic many-body systems in the presence of a locally conserved quantity like charge or energy that moves diffusively. The interplay between conservation laws and scrambling sheds light on the ...
Quantum criticality and state engineering in the simulated anisotropic quantum Rabi model
Yimin Wang, W. You, Maoxin Liu +4 more·Oct 24, 2017
Promising applications of the anisotropic quantum Rabi model (AQRM) in broad parameter ranges are explored, which is realized with superconducting flux qubits simultaneously driven by two-tone time-dependent magnetic fields. Regarding the quantum pha...
Machine learning by unitary tensor network of hierarchical tree structure
Ding Liu, Shi-Ju Ran, P. Wittek +4 more·Oct 13, 2017
The resemblance between the methods used in quantum-many body physics and in machine learning has drawn considerable attention. In particular, tensor networks (TNs) and deep learning architectures bear striking similarities to the extent that TNs can...
Programmable and scalable radio-frequency pulse sequence generator for multi-qubit quantum information experiments
B. Keitch, V. Negnevitsky, Weida Zhang·Oct 11, 2017
We present a versatile rf pulse control system that has been designed for multi-qubit quantum experiments. One instrument can be scaled to provide 32 channels of rf between 10 - 450 MHz. Synchronization can be achieved across multiple instruments. By...
Learning time-dependent noise to reduce logical errors: real time error rate estimation in quantum error correction
M. Huo, Ying Li·Oct 10, 2017
Quantum error correction is important to quantum information processing, which allows us to reliably process information encoded in quantum error correction codes. Efficient quantum error correction benefits from the knowledge of error rates. We prop...