Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,647 papers in 12 months (-16% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Variational Quantum Optimization of Nonlocality in Noisy Quantum Networks
Brian Doolittle, T. Bromley, N. Killoran +1 more·May 5, 2022
The noise and complexity inherent to quantum communication networks leads to technical challenges in designing quantum network protocols using classical methods. We address this issue with a hybrid variational quantum optimization (VQO) framework tha...
Vector Field Visualization of Single-Qubit State Tomography
Adrien Suau, Marc Vuffray, A. Lokhov +2 more·May 5, 2022
As the variety of commercially available quantum computers continues to increase, so does the need for tools that can characterize, verify, and validate these computers. This work explores using quantum state tomography for characterizing the perform...
Improved Algorithms of Quantum Imaginary Time Evolution for Ground and Excited States of Molecular Systems.
T. Tsuchimochi, Yoohee Ryo, S. Ten-no +1 more·May 4, 2022
Quantum imaginary time evolution (QITE) is a recently proposed quantum-classical hybrid algorithm that is guaranteed to reach the lowest state of systems. In this study, we present several improvements on QITE, mainly focusing on molecular applicatio...
The landscape of the quantum start-up ecosystem
Z. Seskir, Ramis Korkmaz, A. Aydinoğlu·May 4, 2022
The second quantum revolution has been producing groundbreaking scientific and technological outputs since the early 2000s; however, the scientific literature on the impact of this revolution on the industry, specifically on start-ups, is limited. In...
A Tool For Debugging Quantum Circuits
Sara Ayman Metwalli, R. V. Meter·May 4, 2022
As the scale of quantum programs grows to match that of classical software, the nascent field of quantum software engineering must mature and tools such as debuggers will become increasingly important. However, developing a quantum debugger is challe...
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...
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...
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 ...
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...
Quantum image edge detection based on eight-direction Sobel operator for NEQR
Wenjie Liu, Lu Wang·May 1, 2022
Quantum Sobel edge detection (QSED) is a kind of algorithm for image edge detection using quantum mechanism, which can solve the real-time problem encountered by classical algorithms. However, the existing QSED algorithms only consider two- or four-d...
Lifetime-Based Optimization for Simulating Quantum Circuits on a New Sunway Supercomputer
Yaojian Chen, Yong Liu, X. Shi +8 more·May 1, 2022
High-performance classical simulator for quantum circuits, in particular the tensor network contraction algorithm, has become an important tool for the validation of noisy quantum computing. In order to address the memory limitations, the slicing tec...
A Scalable 5, 6-Qubit Grover's Quantum Search Algorithm
Dinesh Reddy Vemula, Debanjan Konar, Sudeep Satheesan +2 more·Apr 30, 2022
—Recent studies have been spurred on by the promise of advanced quantum computing technology, which has led to the development of quantum computer simulations on classical hardware. Grover’s quantum search algorithm is one of the well-known applicati...
Quantum Computing for Power Flow Algorithms: Testing on real Quantum Computers
Brynjar Sævarsson, Spyros Chatzivasileiadis, H. Jóhannsson +1 more·Apr 29, 2022
Quantum computing has the potential to solve many computational problems exponentially faster than classical computers. The high shares of renewables and the wide deployment of converter-interfaced resources require new tools that shall drastically a...
Symbolic Synthesis of Clifford Circuits and Beyond
M. Amy, Owen Bennett-Gibbs, N. J. Ross·Apr 29, 2022
Path sums are a convenient symbolic formalism for quantum operations with applications to the simulation, optimization, and verification of quantum protocols. Unlike quantum circuits, path sums are not limited to unitary operations, but can express a...
FABLE: Fast Approximate Quantum Circuits for Block-Encodings
Daan Camps, R. Beeumen·Apr 29, 2022
Block-encodings of matrices have become an essential element of quantum algorithms derived from the quantum singular value transformation. This includes a variety of algorithms ranging from the quantum linear systems problem to quantum walk, Hamilton...
Propagation of errors and quantitative quantum simulation with quantum advantage
S. Flannigan, N. Pearson, Guang Hao Low +5 more·Apr 28, 2022
The rapid development in hardware for quantum computing and simulation has led to much interest in problems where these devices can exceed the capabilities of existing classical computers and known methods. Approaching this for problems that go beyon...
Quantum error mitigation by hidden inverses protocol in superconducting quantum devices
Vicente Leyton-Ortega, Swarnadeep Majumder, R. Pooser·Apr 26, 2022
We present a method to improve the convergence of variational algorithms based on hidden inverses (HIs) to mitigate coherent errors. In the context of error mitigation, this means replacing the hardware implementation of certain Hermitian gates with ...
Universal compilation for quantum state preparation and tomography
V. Hai, Le Bin Ho·Apr 25, 2022
Universal compilation is a training process that compiles a trainable unitary into a target unitary and it serves vast potential applications from quantum dynamic simulations to optimal circuits with deep-compressing, device benchmarking, quantum err...
Simulating key properties of lithium-ion batteries with a fault-tolerant quantum computer
A. Delgado, Pablo Antonio Moreno Casares, R. D. Reis +9 more·Apr 25, 2022
There is a pressing need to develop new rechargeable battery technologies that can offer higher energy storage, faster charging, and lower costs. Despite the success of existing methods for the simulation of battery materials, they can sometimes fall...
Quantum polar stabilizer codes based on polarization of pure quantum channel don't work for quantum computing
Zhengzhong Yi, Z.-H. Liang, Yulin Wu +1 more·Apr 25, 2022
Inspired by classical polar codes, whose coding rate can asymptotically achieve the Shannon capacity, researchers are trying to find its analogue in quantum information field, which are called quantum polar codes. However, no one has designed a quant...