Papers
Live trends in quantum computing research, updated daily from arXiv.
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31,611
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Research Volume
15,673 papers in 12 months (-39% 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
Parametrized Quantum Policies for Reinforcement Learning
S. Jerbi, Casper Gyurik, Simon Marshall +2 more·Mar 9, 2021
With the advent of real-world quantum computing, the idea that parametrized quantum computations can be used as hypothesis families in a quantum-classical machine learning system is gaining increasing traction. Such hybrid systems have already shown ...
Molecular Machines for Quantum Error Correction
T. Guerreiro·Mar 9, 2021
Inspired by biological molecular machines we explore the idea of an active quantum robot whose purpose is delaying decoherence. A conceptual model capable of partially protecting arbitrary logical qubit states against single physical qubit errors is ...
Machine Learning the period finding algorithm
J. Francis, Anil Shaji·Mar 9, 2021
We use differentiable programming and gradient descent to find unitary matrices that can be used in the period finding algorithm to extract period information from the state of a quantum computer post application of the oracle. The standard procedure...
NISQ Algorithm for Hamiltonian simulation via truncated Taylor series
J. Lau, T. Haug, L. Kwek +1 more·Mar 9, 2021
Simulating the dynamics of many-body quantum systems is believed to be one of the first fields that quantum computers can show a quantum advantage over classical computers. Noisy intermediate-scale quantum (NISQ) algorithms aim at effectively using ...
Quantum-accelerated constraint programming
Kyle E. C. Booth, B. O’Gorman, Jeffrey Marshall +2 more·Mar 8, 2021
Constraint programming (CP) is a paradigm used to model and solve constraint satisfaction and combinatorial optimization problems. In CP, problems are modeled with constraints that describe acceptable solutions and solved with backtracking tree searc...
Autonomous quantum error correction and quantum computation
Jos'e Lebreuilly, Kyungjoo Noh, Chiao-Hsuan Wang +2 more·Mar 8, 2021
In this work, we present a general theoretical framework for the study of autonomously corrected quantum devices. First, we identify a necessary and sufficient revised version of the Knill-Laflamme conditions for the existence of an engineered Lindbl...
Error Mitigation for Universal Gates on Encoded Qubits.
C. Piveteau, David Sutter, S. Bravyi +2 more·Mar 8, 2021
The Eastin-Knill theorem states that no quantum error-correcting code can have a universal set of transversal gates. For Calderbank-Shor-Steane codes that can implement Clifford gates transversally, it suffices to provide one additional non-Clifford ...
Reducing quantum annealing biases for solving the graph partitioning problem
Elijah Pelofske, Georg Hahn, H. Djidjev·Mar 8, 2021
Quantum annealers offer an efficient way to compute high quality solutions of NP-hard problems when expressed in a QUBO (quadratic unconstrained binary optimization) or an Ising form. This is done by mapping a problem onto the physical qubits and cou...
Hardware error correction for programmable photonics
S. Bandyopadhyay, R. Hamerly, D. Englund·Mar 8, 2021
Programmable photonic circuits of reconfigurable interferometers can be used to implement arbitrary operations on optical modes, facilitating a flexible platform for accelerating tasks in quantum simulation, signal processing, and artificial intellig...
Remote creation of quantum coherence via indefinite causal order
Jasleen Kaur, Shrobona Bagchi, A. Pati·Mar 8, 2021
Quantum coherence is a prime resource in quantum computing and quantum communication. Quantum coherence of an arbitrary qubit can be created at a remote location using maximally entangled state, local operation and classical communication. However, i...
Massively-multiplexed generation of Bell-type entanglement using a quantum memory
M. Lipka, Mateusz Mazelanik, Adam Leszczyński +2 more·Mar 8, 2021
High-rate generation of hybrid photon-matter entanglement remains a fundamental building block of quantum network architectures enabling protocols such as quantum secure communication or quantum distributed computing. While a tremendous effort has be...
Hybrid Quantum Applications Need Two Orchestrations in Superposition: A Software Architecture Perspective
Benjamin Weder, Johanna Barzen, F. Leymann +1 more·Mar 7, 2021
Quantum applications are most often hybrid, i.e., they are not only made of implementations of pure quantum algorithms but also of classical programs as well as workflows and topologies as key artifacts, and data they process. Since workflows and top...
Quantum K-nearest neighbor classification algorithm based on Hamming distance
Jing Li, Song Lin, Kai-huan Yu +1 more·Mar 7, 2021
K-nearest neighbor classification algorithm is one of the most basic algorithms in machine learning, which determines the sample’s category by the similarity between samples. In this paper, we propose a quantum K-nearest neighbor classification algor...
Entangled q-convolutional neural nets
V. Anagiannis, Miranda C. N. Cheng·Mar 6, 2021
We introduce a machine learning model, the q-CNN model, sharing key features with convolutional neural networks and admitting a tensor network description. As examples, we apply q-CNN to the MNIST and Fashion MNIST classification tasks. We explain ho...
Quantum algorithm for the Navier–Stokes equations by using the streamfunction-vorticity formulation and the lattice Boltzmann method
L. Budinski·Mar 5, 2021
In this paper, a new algorithm for solving the Navier–Stokes equations (NSE) on a quantum device is presented. For the fluid flow equations, the stream function-vorticity formulation is adopted, while the lattice Boltzmann method (LBM) is utilized fo...
Unsupervised event classification with graphs on classical and photonic quantum computers
A. Blance, M. Spannowsky·Mar 5, 2021
Photonic Quantum Computers provide several benefits over the discrete qubit-based paradigm of quantum computing. By using the power of continuous-variable computing we build an anomaly detection model to use on searches for New Physics. Our model use...
Investigating microwave loss of SiGe using superconducting transmon qubits
M. Sandberg, V. Adiga, M. Brink +6 more·Mar 5, 2021
Silicon-germanium (SiGe) is a material that possesses a multitude of applications ranging from transistors to electro-optical modulators and quantum dots. The diverse properties of SiGe also make it attractive to implementations involving superconduc...
Theoretical Realization of a Two Qubit Quantum Controlled-NOT Logic Gate and a Single Qubit Quantum Hadamard Logic Gate in the Anti-Jaynes-Cummings Model
Christopher Mayero, J. Omolo, S. Okeyo·Mar 4, 2021
Quantum gates are fundamental in Quantum computing for their role in manipulating elementary information carriers referred to as quantum bits. In this paper, a theoretical scheme for realizing a quantum Hadamard and a quantum controlled-NOT logic gat...
Simulating the Sycamore quantum supremacy circuits
Feng Pan, P. Zhang·Mar 4, 2021
We propose a general tensor network method for simulating quantum circuits. The method is massively more efficient in computing a large number of correlated bitstring amplitudes and probabilities than existing methods. As an application, we study the...
Quantum dimensionality reduction by linear discriminant analysis
Kai-huan Yu, Song Lin, Gongde Guo·Mar 4, 2021
Dimensionality reduction (DR) of data is a crucial issue for many machine learning tasks, such as pattern recognition and data classification. In this paper, we present a quantum algorithm and a quantum circuit to efficiently perform linear discrimin...