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Papers

Live trends in quantum computing research, updated daily from arXiv.

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15,415 papers in 12 months (-6% vs prior quarter)

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31,274 papers found

Robust optimization for quantum reinforcement learning control using partial observations

Chen Jiang, Yu Pan, Zhengguang Wu +2 more·Jun 24, 2022

The current quantum reinforcement learning control models often assume that the quantum states are known a priori for control optimization. However, full observation of quantum state is experimentally infeasible due to the exponential scaling of the ...

Computer SciencePhysicsEngineering

High-performance computing and computational intelligence applications with a multi-chaos perspective

Damiano Perri, O. Gervasi, Marco Simonetti +1 more·Jun 24, 2022

The experience of the COVID-19 pandemic, which has accelerated many chaotic processes in modern society, has highlighted in a very serious and urgent way the need to understand complex processes in order to achieve the common well-being. Modern high ...

Computer Science

Tangelo: An Open-source Python Package for End-to-end Chemistry Workflows on Quantum Computers

Valentin Senicourt, James Brown, Alexandre Fleury +10 more·Jun 24, 2022

Tangelo (https link) is an open-source Python software package for the development of end-to-end chemistry workflows on quantum computers, released under Apache 2.0 license. It aims to support the design of successful experiments on quantum hardware, ...

Physics

Ion-native variational ansatz for quantum approximate optimization

D. Rabinovich, Soumik Adhikary, E. Campos +6 more·Jun 23, 2022

Variational quantum algorithms involve training parameterized quantum circuits using a classi-cal co-processor. An important variational algorithm, designed for combinatorial optimization, is the quantum approximate optimization algorithm. Realizatio...

Physics

Preparing Many Copies of a Quantum State in the Black-Box Model

Yassine Hamoudi·Jun 23, 2022

We describe a simple quantum algorithm for preparing $K$ copies of an $N$-dimensional quantum state whose amplitudes are given by a quantum oracle. Our result extends a previous work of Grover, who showed how to prepare one copy in time $O(\sqrt{N})$...

PhysicsComputer Science

Quantum Approximation of Normalized Schatten Norms and Applications to Learning

Yiyou Chen, Hideyuki Miyahara, Louis-S. Bouchard +1 more·Jun 23, 2022

Efficient measures to determine similarity of quantum states, such as the fidelity metric, have been widely studied. In this paper, we address the problem of defining a similarity measure for quantum operations that can be efficiently estimated . Given two...

PhysicsComputer Science

Fast classical simulation of Hamiltonian dynamics by simultaneous diagonalization using Clifford transformation with parallel computation

Yoshiaki Kawase, K. Fujii·Jun 23, 2022

Simulating quantum many-body dynamics is important both for fundamental understanding of physics and practical applications for quantum information processing. Therefore, classical simulation methods have been developed so far. Specifically, the Trot...

Computer SciencePhysics

Double-bracket quantum algorithms for diagonalization

M. Gluza·Jun 23, 2022

This work proposes double-bracket iterations as a framework for obtaining diagonalizing quantum circuits. Their implementation on a quantum computer consists of interlacing evolutions generated by the input Hamiltonian with diagonal evolutions which ...

PhysicsComputer Science

Paint shop vehicle sequencing based on quantum computing considering color changeover and painting quality

Jing Huang, H. Fan, G. Xiao +1 more·Jun 22, 2022

As customer demands become increasingly diverse, the colors and styles of vehicles offered by automotive companies have also grown substantially. It poses great challenges to design and management of automotive manufacturing system, among which is th...

PhysicsComputer ScienceEngineering

A Logarithm Depth Quantum Converter: From One-hot Encoding to Binary Encoding

Bin Chen, Hanqing Wu, Haomu Yuan +2 more·Jun 22, 2022

Within the quantum computing, there are two ways to encode a normalized vector $\{ \alpha_i \}$. They are one-hot encoding and binary coding. The one-hot encoding state is denoted as $\left | \psi_O^{(N)} \right \rangle=\sum_{i=0}^{N-1} \alpha_i \lef...

Physics

Modular architectures to deterministically generate graph states

Hassan Shapourian, A. Shabani·Jun 22, 2022

Graph states are a family of stabilizer states which can be tailored towards various applications in photonic quantum computing and quantum communication. In this paper, we present a modular design based on quantum dot emitters coupled to a waveguide...

Computer SciencePhysics

Exploring ab initio machine synthesis of quantum circuits

Richard Meister, Cica Gustiani, S. Benjamin·Jun 22, 2022

Gate-level quantum circuits are often derived manually from higher level algorithms. While this suffices for small implementations and demonstrations, ultimately automatic circuit design will be required to realise complex algorithms using hardware-s...

Physics

Perturbation theory under the truncated Wigner approximation: How system-environment entanglement formation drives quantum decoherence

Justin Provazza, Roel Tempelaar·Jun 22, 2022

Quantum decoherence is the disappearance of simple phase relations within a discrete quantum system as a result of interactions with an environment. For many applications, the question is not necessarily how to avoid (inevitable) system-environment i...

Physics

Quantum algorithm for learning secret strings and its experimental demonstration

Yongzhen Xu, Shihao Zhang, Lvzhou Li·Jun 22, 2022

In this paper, we consider the secret-string-learning problem in the teacher-student setting: the teacher has a secret string s ∈ { 0 , 1 } n , and the student wants to learn the secret s by question-answer interactions with the teacher, where at eac...

Physics

Quantum network medicine: rethinking medicine with network science and quantum algorithms

S. Maniscalco, Elsi-Mari Borrelli, D. Cavalcanti +14 more·Jun 22, 2022

Scientific and technological advances in medicine and systems biology have unequivocally shown that health and disease must be viewed in the context of the interplay among multiple molecular and environmental factors. Understanding the effects of cel...

PhysicsBiology

Variational determination of arbitrarily many eigenpairs in one quantum circuit

Guanglei Xu, Yi-Bin Guo, Xuan Li +3 more·Jun 22, 2022

The state-of-the-art quantum computing hardware has entered the noisy intermediate-scale quantum (NISQ) era. Having been constrained by the limited number of qubits and shallow circuit depth, NISQ devices have nevertheless demonstrated the potential ...

Physics

Q-rMinRank attack: The first quantum approach for key recovery attacks on Rainbow

Seong-Min Cho, Seung-Hyun Seo·Jun 22, 2022

Recent rank-based attacks have reduced the security of Rainbow below the security requirements set out by NIST by speeding up repeated kernel finding operations using classical mathematics techniques. If quantum algorithms are applied to perform thes...

Computer Science

Quantum self-consistent equation-of-motion method for computing molecular excitation energies, ionization potentials, and electron affinities on a quantum computer

Ayush Asthana, Ashutosh Kumar, Vibin Abraham +8 more·Jun 21, 2022

Near-term quantum computers are expected to facilitate material and chemical research through accurate molecular simulations. Several developments have already shown that accurate ground-state energies for small molecules can be evaluated on present-...

PhysicsMedicine

Single-step implementation of a hybrid controlled-not gate with one superconducting qubit simultaneously controlling multiple target cat-state qubits

Qi-Ping Su, Yu Zhang, Chuiping Yang·Jun 21, 2022

Hybrid quantum gates have recently drawn considerable attention. They play significant roles in connecting quantum information processors with qubits of different encoding and have important applications in the transmission of quantum states between ...

Physics

Quantum computing quantum Monte Carlo

Yukun Zhang, Yifei Huang, Jinzhao Sun +2 more·Jun 21, 2022

Quantum computing and quantum Monte Carlo (QMC) are respectively the state-of-the-art quantum and classical computing methods for understanding many-body quantum systems. Here, we propose a hybrid quantum-classical algorithm that integrates these two...

Physics
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