Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,369 papers in 12 months (-8% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
On adaptive low-depth quantum algorithms for robust multiple-phase estimation
Haoya Li, Hongkang Ni, Lexing Ying·Mar 14, 2023
This paper is an algorithmic study of quantum phase estimation with multiple eigenvalues. We present robust multiple-phase estimation (RMPE) algorithms with Heisenberg-limited scaling. The proposed algorithms improve significantly from the idea of si...
Training variational quantum algorithms with random gate activation
Shuo Liu, Shi-Xin Zhang, Shao-Kai Jian +1 more·Mar 14, 2023
Variational quantum algorithms (VQAs) hold great potentials for near-term applications and are promising to achieve quantum advantage on practical tasks. However, VQAs suffer from severe barren plateau problem as well as have a large probability of b...
Analyses of the viability of automating the quantum circuit construction of Grover Oracle for executing wildcard searches on NISQ processors
William W. Huang·Mar 14, 2023
Using Grover algorithm, this work investigates a technique for encoding search phrases used in wildcard searches. The technique involves creating a phase Oracle that loads data into a quantum circuit together with the search terms that have been enco...
Scalable Program Implementation and Simulation of the Large-Scale Quantum Algorithm: $1024\times 1024$ Quantum Linear Solver and Beyond
Zhao-Yun Chen, Cheng Xue, Xi-Ning Zhuang +5 more·Mar 13, 2023
Program implementation and simulation are essential for research in the field of quantum algorithms. However, complex and large-scale quantum algorithms can pose challenges for existing quantum programming languages and simulators. Here, we present a...
Significant improvement of fidelity for encoded quantum bell pairs at long and short-distance communication along with generalized circuit
Syed Emad Uddin Shubha, MD Saifur Rahman, Mahdy M.R.C·Mar 13, 2023
Quantum entanglement is a unique criterion of the quantum realm and an essential tool to secure quantum communication. Ensuring high-fidelity entanglement has always been a challenging task owing to interaction with the hostile channel environment cr...
Optimal parameter configurations for sequential optimization of the variational quantum eigensolver
Katsuhiro Endo, Yuki Sato, Rudy Raymond +3 more·Mar 13, 2023
Variational Quantum Eigensolver (VQE) is a hybrid algorithm for finding the minimum eigenvalue/vector of a given Hamiltonian by optimizing a parametrized quantum circuit (PQC) using a classical computer. Sequential optimization methods, which are oft...
A Review of Bayesian Methods in Electronic Design Automation
Zhengqi Gao, D. Boning·Mar 13, 2023
The utilization of Bayesian methods has been widely acknowledged as a viable solution for tackling various challenges in electronic integrated circuit (IC) design under stochastic process variation, including circuit performance modeling, yield/failu...
Fermionic quantum processing with programmable neutral atom arrays
Daniel Gonz'alez-Cuadra, D. Bluvstein, M. Kalinowski +10 more·Mar 13, 2023
Significance Neutral atoms trapped in tweezer arrays have recently emerged as powerful quantum simulation platforms, with recent experiments targeting quantum spin models. In this work, we envision the next generation of programmable atomic quantum s...
Automatic Generation of an Efficient Less-Than Oracle for Quantum Amplitude Amplification
Javier Sanchez-Rivero, Daniel Talav'an, J. García-Alonso +2 more·Mar 13, 2023
Grover's algorithm is a well-known contribution to quantum computing. It searches one value within an unordered sequence faster than any classical algorithm. A fundamental part of this algorithm is the so-called oracle, a quantum circuit that marks t...
Estimate Distillable Entanglement and Quantum Capacity by Squeezing Useless Entanglement
Chengkai Zhu, Chenghong Zhu, Xin Wang·Mar 13, 2023
Quantum Internet relies on quantum entanglement as a fundamental resource for secure and efficient quantum communication, reshaping data transmission. In this context, entanglement distillation emerges as a crucial process that plays a pivotal role i...
Doubly Optimal Parallel Wire Cutting without Ancilla Qubits
Hiroyuki Harada, Kaito Wada, Naoki Yamamoto·Mar 13, 2023
A restriction in the quality and quantity of available qubits presents a substantial obstacle to the application of near-term and early fault-tolerant quantum computers in practical tasks. To confront this challenge, some techniques for effectively a...
Improved quantum error correction with randomized compiling
Aditya Jain, Pavithran Iyer, S. Bartlett +1 more·Mar 13, 2023
Current hardware for quantum computing suffers from high levels of noise, and so to achieve practical fault-tolerant quantum computing will require powerful and efficient methods to correct for errors in quantum circuits. Here, we explore the role an...
Direct tomography of quantum states and processes via weak measurements of Pauli spin operators on an NMR quantum processor
Akshay Gaikwad, Gayatri Singh, K. Dorai +1 more·Mar 13, 2023
In this paper, we present an efficient weak measurement-based scheme for direct quantum state tomography (DQST) and direct quantum process tomography (DQPT) and experimentally implement it on an NMR ensemble quantum information processor without invo...
Evolutionary quantum feature selection
Antonella Albino, O. Pires, Mauro Q. Nooblath Neto +1 more·Mar 13, 2023
Effective feature selection is essential for enhancing the performance of artificial intelligence models. It involves identifying feature combinations that optimize a given metric, but this is a challenging task due to the problem's exponential time ...
Robustness of Bell violation of graph states to qubit loss
S. Silberstein, Rotem Arnon-Friedman·Mar 13, 2023
Graph states are special entangled states advantageous for many quantum technologies, including quantum error correction, multiparty quantum communication and measurement-based quantum computation. Yet, their fidelity is often disrupted by various er...
Protecting classical-quantum signals in free-space optical channels
E. Villaseñor, M. Winnel, T. Ralph +3 more·Mar 12, 2023
Due to turbulence and tracking errors, free-space optical channels involving mobile transceivers are characterized by a signal's partial loss or complete erasure. This work presents an error correction protocol capable of protecting a signal passing ...
A quantum spectral method for simulating stochastic processes, with applications to Monte Carlo
Adam Bouland, A. Dandapani, A. Prakash·Mar 12, 2023
Stochastic processes play a fundamental role in physics, mathematics, engineering and finance. One potential application of quantum computation is to better approximate properties of stochastic processes. For example, quantum algorithms for Monte Car...
Experimental Realization of Nonunitary Multiqubit Operations.
M. Mourik, Elias Zapusek, Pavel Hrmo +5 more·Mar 10, 2023
We demonstrate a novel experimental tool set that enables irreversible multiqubit operations on a quantum platform. To exemplify our approach, we realize two elementary nonunitary operations: the or and nor gates. The electronic states of two trapped...
Warm-Starting and Quantum Computing: A Systematic Mapping Study
Felix Truger, Johanna Barzen, Marvin Bechtold +4 more·Mar 10, 2023
Due to low numbers of qubits and their error-proneness, Noisy Intermediate-Scale Quantum (NISQ) computers impose constraints on the size of quantum algorithms they can successfully execute. State-of-the-art research introduces various techniques addr...
High-speed and energy-efficient non-volatile silicon photonic memory based on heterogeneously integrated memresonator
B. Tossoun, D. Liang, S. Cheung +4 more·Mar 10, 2023
Photonic integrated circuits have grown as potential hardware for neural networks and quantum computing, yet the tuning speed and large power consumption limited the application. Here, authors introduce the memresonator, a memristor heterogeneously i...