Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
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 ...
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 ...
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, ...
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...
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 $O(\sqrt{N})$...
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 ...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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 ...
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...
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-...
Cooperative quantum information erasure
L. Buffoni, M. Campisi·Jun 21, 2022
We demonstrate an information erasure protocol that resets N qubits at once. The method displays exceptional performances in terms of energy cost (it operates nearly at Landauer energy cost kTln2), time duration (∼μs) and erasure success rate (∼99,9...
Deterministic generation of multidimensional photonic cluster states with a single quantum emitter
V. Ferreira, Gihwan Kim, A. Butler +2 more·Jun 21, 2022
Entanglement is a key resource in quantum computing and other prospective technologies. Multidimensional photonic graph states, such as cluster states, have a special entanglement structure that makes them a valuable resource for quantum metrology, s...