Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,714
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152
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Research Volume
15,749 papers in 12 months (-37% 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
Realizing Quantum Algorithms on Real Quantum Computing Devices
C. G. Almudéver, L. Lao, R. Wille +1 more·Mar 1, 2020
Quantum computing is currently moving from an academic idea to a practical reality. Quantum computing in the cloud is already available and allows users from all over the world to develop and execute real quantum algorithms. However, companies which ...
Improved Gilbert–Varshamov Bound for Entanglement-Assisted Asymmetric Quantum Error Correction by Symplectic Orthogonality
R. Matsumoto·Mar 1, 2020
We propose and prove an existential theorem for entanglement-assisted asymmetric quantum error correction. Then, we demonstrate its superiority over the conventional one.
Faster amplitude estimation
Kouhei Nakaji·Mar 1, 2020
In this paper, we introduce an efficient algorithm for the quantum amplitude estimation task which is tailored for near-term quantum computers. The quantum amplitude estimation is an important problem which has various applications in fields such as ...
Internal Boundary Between Entanglement and Separability Within a Quantum State
Banghai Wang·Mar 1, 2020
Quantum states are the key mathematical objects in quantum mechanics, and entanglement lies at the heart of the nascent fields of quantum information processing and computation. However, there has not been a general, necessary and sufficient, and ope...
Particle Track Reconstruction with Quantum Algorithms
Cenk Tuysuz, F. Carminati, B. Demirkoz +6 more·Mar 1, 2020
Accurate determination of particle track reconstruction parameters will be a major challenge for the High Luminosity Large Hadron Collider (HL-LHC) experiments. The expected increase in the number of simultaneous collisions at the HL-LHC and the resu...
Quantum circuits synthesis using Householder transformations
T. Brugière, M. Baboulin, Benoît Valiron +1 more·Mar 1, 2020
Abstract The synthesis of a quantum circuit consists in decomposing a unitary matrix into a series of elementary operations. In this paper, we propose a circuit synthesis method based on the QR factorization via Householder transformations. We provid...
Next-Generation Topology of D-Wave Quantum Processors
K. Boothby, P. Bunyk, Jack Raymond +1 more·Feb 29, 2020
This paper presents an overview of the topology of D-Wave's next-generation quantum processors. It provides examples of minor embeddings and discusses performance of embedding algorithms for the new topology compared to the existing Chimera topology....
Quantum Computing Assisted Deep Learning for Fault Detection and Diagnosis in Industrial Process Systems
Akshay Ajagekar, F. You·Feb 29, 2020
Abstract Quantum computing (QC) and deep learning techniques have attracted widespread attention in the recent years. This paper proposes QC-based deep learning methods for fault diagnosis that exploit their unique capabilities to overcome the comput...
Chemistry on Quantum Computers with Virtual Quantum Subspace Expansion.
M. Urbánek, Daan Camps, Roel Van Beeumen +1 more·Feb 28, 2020
Simulating chemical systems on quantum computers has been limited to a few electrons in a minimal basis. We demonstrate experimentally that the virtual quantum subspace expansion (Takeshita, T.; Phys. Rev. X 2020, 10, 011004, 10.1103/PhysRevX.10.0110...
Near-optimal ground state preparation
Lin Lin, Yu Tong·Feb 28, 2020
Preparing the ground state of a given Hamiltonian and estimating its ground energy are important but computationally hard tasks. However, given some additional information, these problems can be solved efficiently on a quantum computer. We assume tha...
Digital quantum simulation of molecular dynamics and control
Alicia B. Magann, Matthew D. Grace, H. Rabitz +1 more·Feb 28, 2020
Optimally-shaped electromagnetic fields have the capacity to coherently control the dynamics of quantum systems, and thus offer a promising means for controlling molecular transformations relevant to chemical, biological, and materials applications. ...
Galois hulls of MDS codes and their quantum error correction
Meng Cao·Feb 28, 2020
The hull of linear codes plays an important role in quantum information and coding theory. In the present paper, by investigating the Galois hulls of generalized Reed-Solomon (GRS) codes and extended GRS codes over the finite field Fq, we give severa...
New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds
A. Place, L. Rodgers, Pranav S. Mundada +18 more·Feb 28, 2020
The superconducting transmon qubit is a leading platform for quantum computing and quantum science. Building large, useful quantum systems based on transmon qubits will require significant improvements in qubit relaxation and coherence times, which a...
Efficient Qubit Routing for a Globally Connected Trapped Ion Quantum Computer
M. Webber, Steven Herbert, S. Weidt +1 more·Feb 28, 2020
The cost of enabling connectivity in noisy intermediate‐scale quantum (NISQ) devices is an important factor in determining computational power. A qubit routing algorithm is created, which enables efficient global connectivity in a previously proposed...
Predicting excited states from ground state wavefunction by supervised quantum machine learning
H. Kawai, Yuya O. Nakagawa·Feb 28, 2020
Excited states of molecules lie in the heart of photochemistry and chemical reactions. The recent development in quantum computational chemistry leads to inventions of a variety of algorithms that calculate the excited states of molecules on near-ter...
Finding the ground state of spin Hamiltonians with reinforcement learning
K. Mills, Pooya Ronagh, Isaac Tamblyn·Feb 28, 2020
Reinforcement learning (RL) has become a proven method for optimizing a procedure for which success has been defined, but the specific actions needed to achieve it have not. Using a method we call ‘controlled online optimization learning’ (COOL), we ...
Self-organized error correction in random unitary circuits with measurement
Ruihua Fan, S. Vijay, A. Vishwanath +1 more·Feb 27, 2020
Random measurements have been shown to induce a phase transition in an extended quantum system evolving under chaotic unitary dynamics, when the strength of measurements exceeds a threshold value. Below this threshold, a steady state with a sub-therm...
A Quantum Money Solution to the Blockchain Scalability Problem
Andrea Coladangelo, Or Sattath·Feb 27, 2020
We put forward the idea that classical blockchains and smart contracts are potentially useful primitives not only for classical cryptography, but for quantum cryptography as well. Abstractly, a smart contract is a functionality that allows parties to...
Probing quantum processor performance with pyGSTi
E. Nielsen, K. Rudinger, T. Proctor +3 more·Feb 27, 2020
PyGSTi is a Python software package for assessing and characterizing the performance of quantum computing processors. It can be used as a standalone application, or as a library, to perform a wide variety of quantum characterization, verification, an...
Approximating the quantum approximate optimization algorithm with digital-analog interactions
David Headley, T. Müller, Ana Martin +3 more·Feb 27, 2020
The quantum approximate optimisation algorithm was proposed as a heuristic method for solving combinatorial optimisation problems on near-term quantum computers and may be among the first algorithms to perform useful computations in the post-supremac...