Papers
Live trends in quantum computing research, updated daily from arXiv.
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31,714
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15,749 papers in 12 months (-37% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
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...
Operator Entanglement in Local Quantum Circuits II: Solitons in Chains of Qubits
B. Bertini, Pavel Kos, T. Prosen·Sep 16, 2019
We provide exact results for the dynamics of local-operator entanglement in quantum circuits with two-dimensional wires featuring ultralocal solitons, i.e. single-site operators which, up to a phase, are simply shifted by the time evolution. We class...
Ultracold polar molecules as qudits
Rahul Sawant, J. A. Blackmore, P. D. Gregory +6 more·Sep 16, 2019
We discuss how the internal structure of ultracold molecules, trapped in the motional ground state of optical tweezers, can be used to implement qudits. We explore the rotational, fine and hyperfine structure of 40Ca19F and 87Rb133Cs, which are examp...
Near-term quantum algorithms for linear systems of equations with regression loss functions
Hsin-Yuan Huang, Kishor Bharti, P. Rebentrost·Sep 16, 2019
Solving linear systems of equations is essential for many problems in science and technology, including problems in machine learning. Existing quantum algorithms have demonstrated the potential for large speedups, but the required quantum resources a...
Identifying Research Challenges in Post Quantum Cryptography Migration and Cryptographic Agility
David E. Ott, Chris Peikert, et al.·Sep 16, 2019
The implications of sufficiently large quantum computers for widely used public-key cryptography is well-documented and increasingly discussed by the security community. An April 2016 report by the National Institute of Standards and Technology (NIST...
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...
Learning adiabatic quantum algorithms for solving optimization problems
D. Pastorello, E. Blanzieri·Sep 15, 2019
An adiabatic quantum algorithm is essentially given by three elements: An initial Hamiltonian with known ground state, a problem Hamiltonian whose ground state corresponds to the solution of the given problem and an evolution schedule such that the a...
Comprehending robust quantum effects in organic semiconductors: Charge-transfer excitons, aggregate phonons and fractons
Yao Yao·Sep 15, 2019
In organic semiconductors working under ambient circumstance, there are remarkable quantum effects lack of comprehensive understanding, and an exotic composite particle named charge transfer (CT) exciton is normally regarded as the key ingredient. An...
Quantum-inspired algorithms for multivariate analysis: from interpolation to partial differential equations
J. Garc'ia-Ripoll·Sep 14, 2019
In this work we study the encoding of smooth, differentiable multivariate functions in quantum registers, using quantum computers or tensor-network representations. We show that a large family of distributions can be encoded as low-entanglement state...
Gaussian Thermal Operations and The Limits of Algorithmic Cooling.
Alfredo Serafini, M. Lostaglio, S. Longden +3 more·Sep 13, 2019
The study of thermal operations allows one to investigate the ultimate possibilities of quantum states and of nanoscale thermal machines. Whilst fairly general, these results typically do not apply to continuous variable systems and do not take into ...
Variational Quantum Linear Solver
Carlos Bravo-Prieto, Ryan Larose, M. Cerezo +3 more·Sep 12, 2019
Previously proposed quantum algorithms for solving linear systems of equations cannot be implemented in the near term due to the required circuit depth. Here, we propose a hybrid quantum-classical algorithm, called Variational Quantum Linear Solver (...
Quantum Linear System Solver Based on Time-optimal Adiabatic Quantum Computing and Quantum Approximate Optimization Algorithm
Dong An, Lin Lin·Sep 12, 2019
We demonstrate that with an optimally tuned scheduling function, adiabatic quantum computing (AQC) can readily solve a quantum linear system problem (QLSP) with O(κ poly(log (κ ε))) runtime, where κ is the condition number, and ε is the target accura...
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...
Dimensional tuning of Majorana fermions and real space counting of the Chern number
Eric Mascot, S. Cocklin, S. Rachel +1 more·Sep 12, 2019
Chiral superconductors have the ability to host topologically protected Majorana zero modes which have been proposed as future qubits for topological quantum computing. The recently introduced magnet--superconductor hybrid (MSH) systems consisting of...
An algorithm for DNA read alignment on quantum accelerators
A. Sarkar, Z. Al-Ars, C. G. Almudéver +1 more·Sep 12, 2019
With small-scale quantum processors transitioning from experimental physics labs to industrial products, these processors allow us to efficiently compute important algorithms in various fields. In this paper, we propose a quantum algorithm to address...
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...
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 ...
An evolutionary strategy for finding effective quantum 2-body Hamiltonians of p-body interacting systems
G. Acampora, V. Cataudella, P. Hegde +3 more·Sep 11, 2019
Embedding p-body interacting models onto the 2-body networks implemented on commercial quantum annealers is a relevant issue. For highly interacting models, requiring a number of ancilla qubits, that can be sizable and make unfeasible (if not impossi...
Robustness-optimized quantum error correction
David Layden, Louisa Ruixue Huang, P. Cappellaro·Sep 11, 2019
Quantum error correction (QEC) codes are usually designed to correct errors regardless of their physical origins. In large-scale devices, this is an essential feature. In smaller-scale devices, however, the main error sources are often understood, an...
Cayley path and quantum computational supremacy: A proof of average-case #P-hardness of Random Circuit Sampling with quantified robustness
R. Movassagh·Sep 11, 2019
A one-parameter unitary-valued interpolation between any two unitary matrices is constructed based on the Cayley transformation, which extends our work. The entries of the interpolated unitaries are shown to be low-degree rational functions in the pa...