Papers
Live trends in quantum computing research, updated daily from arXiv.
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28,494
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13,591 papers in 12 months (-18% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Efficient simulation of random states and random unitaries
G. Alagic, Christian Majenz, A. Russell·Oct 13, 2019
We consider the problem of efficiently simulating random quantum states and random unitary operators, in a manner which is convincing to unbounded adversaries with black-box oracle access. This problem has previously only been considered for restric...
Quantum Error Correction
T. Brun·Oct 8, 2019
Quantum error correction is a set of methods to protect quantum information—that is, quantum states—from unwanted environmental interactions (decoherence) and other forms of noise. The information is stored in a quantum error-correcting code, which i...
Photonic quantum error correction of linear optics using W-state encoding
Madhav Krishnan Vijayan, A. Lund, P. Rohde·Oct 7, 2019
Error-detection and correction are necessary prerequisites for any scalable quantum computing architecture. Given the inevitability of unwanted physical noise in quantum systems and the propensity for errors to spread as computations proceed, computa...
Challenges and Opportunities of Near-Term Quantum Computing Systems
A. Córcoles, A. Kandala, Ali Javadi-Abhari +6 more·Oct 7, 2019
The concept of quantum computing has inspired a whole new generation of scientists, including physicists, engineers, and computer scientists, to fundamentally change the landscape of information technology. With experimental demonstrations stretching...
Quantum-classical reinforcement learning for decoding noisy classical parity information
K. Park, Jonghun Park, J. Rhee·Oct 2, 2019
Learning a hidden parity function from noisy data, known as learning parity with noise (LPN), is an example of intelligent behavior that aims to generalize a concept based on noisy examples. The solution to LPN immediately leads to decoding a random ...
Proof-of-principle experimental demonstration of quantum secure imaging based on quantum key distribution
Y. Zhao 赵, W. Zhang 张, D. Wang 王 +3 more·Oct 1, 2019
We present a quantum secure imaging (QSI) scheme based on the phase encoding and weak+vacuum decoy-state BB84 protocol of quantum key distribution (QKD). It allows us to implement a computational ghost imaging (CGI) system with more simplified equipm...
A Relational Time-Symmetric Framework for Analyzing the Quantum Computational Speedup
G. Castagnoli, Eliahu Cohen, Artur Ekert +1 more·Oct 1, 2019
The usual representation of quantum algorithms is limited to the process of solving the problem. We extend it to the process of setting the problem. Bob, the problem setter, selects a problem-setting by the initial measurement. Alice, the problem sol...
Error Thresholds for Arbitrary Pauli Noise
Johannes Bausch, Felix Leditzky·Oct 1, 2019
The error threshold of a one-parameter family of quantum channels is defined as the largest noise level such that the quantum capacity of the channel remains positive. This in turn guarantees the existence of a quantum error correction code for noise...
Quantum information processing with closely-spaced diamond color centers in strain and magnetic fields [Invited]
Zhujing Xu, Z. Yin, Q. Han +1 more·Sep 26, 2019
Electron and nuclear spins of diamond nitrogen-vacancy (NV) centers are good candidates for quantum information processing as they have long coherence time and can be initialized and read out optically. However, creating a large number of coherently ...
Quantum Entanglement in Time for a Distributed Ledger
Nils Paz, S. Silverman, J. Harmon·Sep 25, 2019
Distributed Ledger Technology (DLT) is a shared, synchronized and replicated data spread spatially and temporally with no centralized administration and/or storage. Each node has a complete and identical set of records. All participants contribute to...
Number-conserving analysis of measurement-based braiding with Majorana zero modes
Christina Knapp, J. Väyrynen, R. Lutchyn·Sep 24, 2019
Majorana-based quantum computation seeks to encode information nonlocally in pairs of Majorana zero modes, thereby isolating qubit states from a local noisy environment. In addition to long coherence times, the attractiveness of Majorana-based quantu...
A Multilayer Network Approach to Quantum Computing
P. Sakkaris, R. Sudhakaran·Sep 21, 2019
The circuit model of quantum computation is reformulated as a multilayer network theory [3] called a Quantum Multiverse Network (QuMvN). The QuMvN formulation allows us to interpret the quantum wave function as a combination of ergodic Markov Chains ...
Hybrid kernel polynomial method
M. Irfan, Sathish R. Kuppuswamy, D. Varjas +4 more·Sep 20, 2019
The kernel polynomial method allows to sample overall spectral properties of a quantum system, while sparse diagonalization provides accurate information about a few important states. We present a method combining these two approaches without loss of...
Efficient evaluation of Pauli strings with entangled measurements
Ikko Hamamura, T. Imamichi·Sep 19, 2019
The advent of cloud quantum computing accelerates development of quantum algorithms. In particular, it is essential to study variational quantum-classical hybrid algorithms, which are executable on Noisy Intermediate-Scale Quantum (NISQ) computers. E...
Hybrid quantum error correction in qubit architectures
L. B. Kristensen, M. Kjaergaard, C. K. Andersen +1 more·Sep 19, 2019
Noise and errors are inevitable parts of any practical implementation of a quantum computer. As a result, large-scale quantum computation will require ways to detect and correct errors on quantum information. Here, we present such a quantum error cor...
Adiabatic Quantum Kitchen Sinks for Learning Kernels Using Randomized Features.
M. Noori, Seyed Shakib Vedaie, Inderpreet Singh +4 more·Sep 17, 2019
Quantum information processing is likely to have far-reaching impact in the field of artificial intelligence. While the race to build an error-corrected quantum computer is ongoing, noisy, intermediate-scale quantum (NISQ) devices provide an immediat...
Error-transparent operations on a logical qubit protected by quantum error correction
Y. Ma, Yang Xu, X. Mu +8 more·Sep 15, 2019
Universal quantum computation1 is striking for its unprecedented capability in processing information, but its scalability is challenging in practice because of the inevitable environment noise. Although quantum error correction (QEC) techniques2–8 h...
Quantum computing with multidimensional continuous-variable cluster states in a scalable photonic platform
Bo-Han Wu, R. N. Alexander, Shuai Liu +1 more·Sep 12, 2019
Quantum computing is a disruptive paradigm widely believed to be capable of solving classically intractable problems. However, the route toward full-scale quantum computers is obstructed by immense challenges associated with the scalability of the pl...
Quantum processor-inspired machine learning in the biomedical sciences
Richard Y. Li, Sharvari Gujja, Sweta R. Bajaj +5 more·Sep 12, 2019
Summary Recent advances in high-throughput genomic technologies coupled with exponential increases in computer processing and memory have allowed us to interrogate the complex molecular underpinnings of human disease from a genome-wide perspective. W...
Nondestructive classification of quantum states using an algorithmic quantum computer
D. Babukhin, A. Zhukov, W. Pogosov·Sep 12, 2019
Methods of processing quantum data become more important as quantum computing devices improve their quality towards fault tolerant universal quantum computers. These methods include discrimination and filtering of quantum states given as an input to ...