Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,410 papers in 12 months (-6% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
High-fidelity and large-scale reconfigurable photonic processor for NISQ applications.
A. Cavaillès, P. Boucher, L. Daudet +3 more·May 3, 2022
Reconfigurable linear optical networks are a key component for the development of optical quantum information processing platforms in the NISQ era and beyond. We report the implementation of such a device based on an innovative design that uses the m...
On Circuit Depth Scaling For Quantum Approximate Optimization
V. Akshay, H. Philathong, E. Campos +4 more·May 3, 2022
Variational quantum algorithms are the centerpiece of modern quantum programming. These algorithms involve training parameterized quantum circuits using a classical co-processor, an ap-proach adapted partly from classical machine learning. An importa...
Many-fermion simulation from the contracted quantum eigensolver without fermionic encoding of the wave function
Scott E. Smart, D. Mazziotti·May 3, 2022
Quantum computers potentially have an exponential advantage over classical computers for the quantum simulation of many-fermion quantum systems. Nonetheless, fermions are more expensive to simulate than bosons due to the fermionic encoding -- a mappi...
Learning Coulomb Diamonds in Large Quantum Dot Arrays
Oswin Krause, A. Chatterjee, F. Kuemmeth +1 more·May 3, 2022
We introduce an algorithm that is able to find the facets of Coulomb diamonds in quantum dot arrays. We simulate these arrays using the constant-interaction model, and rely only on one-dimensional raster scans (rays) to learn a model of the device us...
Quantum estimation bound of the Gaussian matrix permanent
J. Huh·May 3, 2022
Exact calculation and even multiplicative error estimation of matrix permanent are challenging for both classical and quantum computers. Regarding the permanents of random Gaussian matrices, the additive error estimation is closely linked to boson sa...
Accelerated Convergence of Contracted Quantum Eigensolvers through a Quasi-Second-Order, Locally Parameterized Optimization
Scott E. Smart, D. Mazziotti·May 3, 2022
A contracted quantum eigensolver (CQE) finds a solution to the many-electron Schrödinger equation by solving its integration (or contraction) to the two-electron space—a contracted Schrödinger equation (CSE)—on a quantum computer. When applied to the...
Tunable Quantum Neural Networks in the QPAC-Learning Framework
Viet Pham Ngoc, David Tuckey, H. Wiklicky·May 3, 2022
In this paper, we investigate the performances of tunable quantum neural networks in the Quantum Probably Approximately Correct (QPAC) learning framework. Tunable neural networks are quantum circuits made of multi-controlled X gates. By tuning the se...
On the importance of scalability and resource estimation of quantum algorithms for domain sciences
V. Pascuzzi, N. Bao, A. Li·May 2, 2022
—The quantum information science community has seen a surge in new algorithmic developments across scientific domains. These developments have demonstrated polynomial or better improvements in computational and space complexity, incentivizing further ...
Dynamic Qubit Routing with CNOT Circuit Synthesis for Quantum Compilation
A. M. D. Griend, Sarah Meng Li·May 2, 2022
Many quantum computers have constraints regarding which two-qubit operations are locally allowed. To run a quantum circuit under those constraints, qubits need to be mapped to different quantum registers, and multi-qubit gates need to be routed accor...
Entanglement Forging with generative neural network models
Patrick Huembeli, Giuseppe Carleo, Antonio Mezzacapo·May 2, 2022
The optimal use of quantum and classical computational techniques together is important to address problems that cannot be easily solved by quantum computations alone. This is the case of the ground state problem for quantum many-body systems. We sho...
Opportunistic Routing in Quantum Networks
A. Farahbakhsh, Chen Feng·May 2, 2022
Unlike classical routing algorithms, quantum routing algorithms make use of entangled states—a type of resources that have a limited lifetime and need to be regenerated after consumption. In a nutshell, quantum routing algorithms have to use these re...
A walk through of time series analysis on quantum computers
A. Daskin·May 2, 2022
—Because of the rotational components on quantum circuits, some quantum neural networks based on variational circuits can be considered equivalent to the classical Fourier networks. In addition, they can be used to predict the Fourier coefficients of ...
Quantum Robustness Verification: A Hybrid Quantum-Classical Neural Network Certification Algorithm
Nicola Franco, Tom Wollschlager, Nicholas Gao +2 more·May 2, 2022
In recent years, quantum computers and algorithms have made significant progress indicating the prospective importance of quantum computing (QC). Especially combinatorial optimization has gained a lot of attention as an application field for near-ter...
Efficient Use of Quantum Linear System Algorithms in Interior Point Methods for Linear Optimization
Mohammadhossein Mohammadisiahroudi, Ohammadisiahroudi, Amin +3 more·May 2, 2022
Quantum computing has attracted significant interest in the optimization community because it potentially can solve classes of optimization problems faster than conventional supercomputers. Several researchers proposed quantum computing methods, espe...
A near-term quantum algorithm for solving linear systems of equations based on the Woodbury identity
Daniel O’Malley, Jessie M. Henderson, Elijah Pelofske +5 more·May 2, 2022
Quantum algorithms for solving linear systems of equations have generated excitement because of the potential speed-ups involved and the importance of solving linear equations in many applications. However, applying these algorithms can be challengin...
Efficient variational synthesis of quantum circuits with coherent multi-start optimization
N. Nemkov, E. Kiktenko, I. Luchnikov +1 more·May 2, 2022
We consider the problem of the variational quantum circuit synthesis into a gate set consisting of the CNOT gate and arbitrary single-qubit (1q) gates with the primary target being the minimization of the CNOT count. First we note that along with the...
Fermionic Correlation Functions from Randomized Measurements in Programmable Atomic Quantum Devices.
P. Naldesi, A. Elben, A. Minguzzi +3 more·May 2, 2022
We provide an efficient randomized measurement protocol to estimate two- and four-point fermionic correlations in ultracold atom experiments. Our approach is based on combining random atomic beam splitter operations, which can be realized with progra...
Multi-Entanglement Routing Design over Quantum Networks
Yiming Zeng, Jiarui Zhang, Ji Liu +2 more·May 2, 2022
Quantum networks are considered as a promising future platform for quantum information exchange and quantum applications, which have capabilities far beyond the traditional communication networks. Remote quantum entanglement is an essential component...
Quantum computing of the $^6$Li nucleus via ordered unitary coupled clusters
Oriel Kiss, M. Grossi, P. Lougovski +3 more·May 2, 2022
The variational quantum eigensolver (VQE) is an algorithm to compute ground and excited state energy of quantum many-body systems. A key component of the algorithm and an active research area is the construction of a parametrized trial wavefunction -...
Efficient Quantum Algorithm for Nonlinear Reaction–Diffusion Equations and Energy Estimation
Jin-Peng Liu, Dong An, Di Fang +3 more·May 2, 2022
Nonlinear differential equations exhibit rich phenomena in many fields but are notoriously challenging to solve. Recently, Liu et al. (in: Proceedings of the National Academy of Sciences 118(35), 2021) demonstrated the first efficient quantum algorit...