Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,611
This Month
65
Today
0
Research Volume
15,683 papers in 12 months (-39% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Noncommutative graphs based on finite-infinite system couplings: Quantum error correction for a qubit coupled to a coherent field
G. Amosov, A. S. Mokeev, A. N. Pechen·Apr 7, 2021
Quantum error correction plays a key role for quantum information transmission and quantum computing. In this work, we develop and apply the theory of non-commutative operator graphs to study error correction in the case of a finite-dimensional quant...
Collective neutrino oscillations on a quantum computer
Kubra Yeter-Aydeniz, Shikha Bangar, G. Siopsis +1 more·Apr 7, 2021
We calculate the energy levels of a system of neutrinos undergoing collective oscillations as functions of an effective coupling strength and radial distance from the neutrino source using the quantum Lanczos (QLanczos) algorithm implemented on IBM Q...
Avoiding local minima in Variational Quantum Algorithms with Neural Networks
Javier Rivera-Dean, Patrick Huembeli, A. Ac'in +1 more·Apr 7, 2021
Variational Quantum Algorithms have emerged as a leading paradigm for near-term quantum computation. In such algorithms, a parameterized quantum circuit is controlled via a classical optimization method that seeks to minimize a problem-dependent cost...
A systematic variational approach to band theory in a quantum computer
Kyle Sherbert, F. Cerasoli, M. Buongiorno Nardelli·Apr 7, 2021
Quantum computers promise to revolutionize our ability to simulate molecules, and cloud-based hardware is becoming increasingly accessible to a wide body of researchers. Algorithms such as Quantum Phase Estimation and the Variational Quantum Eigensol...
Fault-Tolerant Quantum Computation with Static Linear Optics
I. Tzitrin, Takaya Matsuura, R. N. Alexander +5 more·Apr 7, 2021
The scalability of photonic implementations of fault-tolerant quantum computing based on Gottesman-Kitaev-Preskill (GKP) qubits is injured by the requirements of inline squeezing and reconfigurability of the linear optical network. In this work we pr...
GPU-accelerated simulations of quantum annealing and the quantum approximate optimization algorithm
D. Willsch, M. Willsch, F. Jin +2 more·Apr 7, 2021
We study large-scale applications using a GPU-accelerated version of the massively parallel J\"ulich universal quantum computer simulator (JUQCS--G). First, we benchmark JUWELS Booster, a GPU cluster with 3744 NVIDIA A100 Tensor Core GPUs. Then, we u...
Quantum-enhanced filter: QFilter
Parfait Atchade-Adelomou, Guillermo Alonso-Linaje·Apr 7, 2021
Convolutional neural networks (CNN) are used mainly to treat problems with many images characteristic of deep learning. In this work, we propose a hybrid image classification model to take advantage of quantum and classical computing. The method will...
Experimental quantum learning of a spectral decomposition
M. Geller, Zoe Holmes, Patrick J. Coles +1 more·Apr 7, 2021
Currently available quantum hardware allows for small scale implementations of quantum machine learning algorithms. Such experiments aid the search for applications of quantum computers by benchmarking the near-term feasibility of candidate algorithm...
Quantum Fourier analysis for multivariate functions and applications to a class of Schrödinger-type partial differential equations
Paula García-Molina, Javier Rodríguez-Mediavilla, J. García-Ripoll·Apr 6, 2021
In this work, we develop a highly efficient representation of functions and differential operators based on Fourier analysis. Using this representation, we create a variational hybrid quantum algorithm to solve static, Schrödinger-type, Hamiltonian p...
Suppressing Coherent Two-Qubit Errors via Dynamical Decoupling
J. Qiu, Yuxuan Zhou, Changkang Hu +21 more·Apr 6, 2021
Scalable quantum information processing requires the ability to tune multi-qubit interactions. This makes the precise manipulation of quantum states particularly difficult for multi-qubit interactions because tunability unavoidably introduces sensiti...
Resonant quantum principal component analysis
Zhaokai Li, Zihua Chai, Yuhang Guo +6 more·Apr 6, 2021
An energy-tunable ancillary qubit efficiently probes the principal components of a low-rank matrix. Principal component analysis (PCA) has been widely adopted to reduce the dimension of data while preserving the information. The quantum version of PC...
Fast-forwarding with NISQ processors without feedback loop
K. H. Lim, T. Haug, L. Kwek +1 more·Apr 5, 2021
Simulating quantum dynamics is expected to be performed more easily on a quantum computer than on a classical computer. However, the currently available quantum devices lack the capability to implement fault-tolerant quantum algorithms for quantum si...
A Note on Enumeration by Fair Sampling
Yutaka Mizuno, T. Komatsuzaki·Apr 5, 2021
This note describes an algorithm for enumerating all the elements in a finite set based on uniformly random sampling from the set. This algorithm can be used for enumeration by fair sampling with quantum annealing. Our algorithm is based on a lemma o...
Quantum algorithms for transport coefficients in gauge theories
T. Cohen, Henry Lamm, S. Lawrence +1 more·Apr 5, 2021
In the future, ab initio quantum simulations of heavy ion collisions may become possible with large-scale fault-tolerant quantum computers. We propose a quantum algorithm for studying these collisions by looking at a class of observables requiring dr...
Intrinsic and induced quantum quenches for enhancing qubit-based quantum noise spectroscopy
Yu-Xin Wang, A. Clerk·Apr 5, 2021
Quantum sensing protocols that exploit the dephasing of a probe qubit are powerful and ubiquitous methods for interrogating an unknown environment. They have a variety of applications, ranging from noise mitigation in quantum processors, to the study...
Hamiltonian singular value transformation and inverse block encoding
S. Lloyd, B. Kiani, D. Arvidsson-Shukur +5 more·Apr 3, 2021
: The quantum singular value transformation is a powerful quantum algorithm that allows one to apply a polynomial transformation to the singular values of a matrix that is embedded as a block of a unitary transformation. This paper shows how to perfo...
Risk-sensitive optimization for robust quantum controls
Xiaozhen Ge, R. Wu·Apr 3, 2021
Highly accurate and robust control of quantum operations is vital for the realization of error-correctible quantum computation. In this paper, we show that the robustness of high-precision controls can be remarkably enhanced through sampling-based st...
Demonstration of Shor Encoding on a Trapped-Ion Quantum Computer
N. Nguyen, Muyuan Li, Alaina M. Green +5 more·Apr 2, 2021
Fault-tolerant quantum error correction (QEC) is crucial for unlocking the true power of quantum computers. QEC codes use multiple physical qubits to encode a logical qubit, which is protected against errors at the physical qubit level. Here we use a...
Quantum computing critical exponents
Henrik Dreyer, M. Bejan, Etienne Granet·Apr 2, 2021
We show that the Variational Quantum-Classical Simulation algorithm admits a finite circuit depth scaling collapse when targeting the critical point of the transverse field Ising chain. The order parameter only collapses on one side of the transition...
Realizing topologically ordered states on a quantum processor
K. Satzinger, Y. Liu, A. Smith +95 more·Apr 2, 2021
Description Synthesizing topological order Topologically ordered matter exhibits long-range quantum entanglement. However, measuring this entanglement in real materials is extremely tricky. Now, two groups take a different approach and turn to synthe...