Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Variational Quantum Algorithms for the Allocation of Resources in a Cloud/Edge Architecture
C. Mastroianni, Francesco Plastina, J. Settino +1 more·Jan 25, 2024
Modern cloud/edge architectures need to orchestrate multiple layers of heterogeneous computing nodes, including pervasive sensors/actuators, distributed edge/fog nodes, centralized data centers, and quantum devices. The optimal assignment and schedul...
A Lagrangian path integral approach to the qubit
A. Ibort, María Jiménez-Vázquez·Jan 24, 2024
A Lagrangian description of the qubit based on Schwinger’s picture of Quantum Mechanics that allows for a Feynman-like computation of its probability amplitudes is presented. The Lagrangian is a function on the groupoid that describes the qubit and a...
Depth-Optimal Addressing of 2D Qubit Array with 1D Controls Based on Exact Binary Matrix Factorization
Daniel Bochen Tan, Shuohao Ping, Jason Cong·Jan 24, 2024
Reducing control complexity is essential for achieving large-scale quantum computing, particularly on platforms operating in cryogenic environments. Wiring each qubit to a room-temperature control poses a challenge, as this approach would surpass the...
Federated learning with distributed fixed design quantum chips and quantum channels
A. Daskin·Jan 24, 2024
The privacy in classical federated learning can be breached through the use of local gradient results combined with engineered queries to the clients. However, quantum communication channels are considered more secure because a measurement on the cha...
Solving nonlinear differential equations on Quantum Computers: A Fokker-Planck approach
Felix Tennie, Luca Magri·Jan 24, 2024
For quantum computers to become useful tools to physicists, engineers and computational scientists, quantum algorithms for solving nonlinear differential equations need to be developed. Despite recent advances, the quest for a solver that can integra...
Stressing Out Modern Quantum Hardware: Performance Evaluation and Execution Insights
Aliza U. Siddiqui, Kaitlin Gili, Christopher Ballance·Jan 24, 2024
Quantum hardware is progressing at a rapid pace and, alongside this progression, it is vital to challenge the capabilities of these machines using functionally complex algorithms. Doing so provides direct insights into the current capabilities of mod...
Local Hamiltonian decomposition and classical simulation of parametrized quantum circuits
Bibhas Adhikari, Aryan Jha·Jan 24, 2024
In this paper we develop a classical algorithm of complexity $O(K \, 2^n)$ to simulate parametrized quantum circuits (PQCs) of $n$ qubits, where $K$ is the total number of one-qubit and two-qubit control gates. The algorithm is developed by finding $...
Variational Quantum Eigensolvers with Quantum Gaussian Filters for Solving ground-state problems in quantum many-body Systems
Yihao Liu, Min-Quan He, Z. D. Wang·Jan 24, 2024
We present a novel quantum algorithm for approximating the ground-state in quantum many-body systems, particularly suited for Noisy Intermediate-Scale Quantum (NISQ) devices. Our approach integrates Variational Quantum Eigensolvers (VQE) with Quantum...
Improving Zero-Noise Extrapolation for Quantum-Gate Error Mitigation Using a Noise-Aware Folding Method
Leanghok Hour, Myeongseong Go, Youngsun Han·Jan 23, 2024
Recent hundred-qubit processors represent a significant hardware advancement, but current limitations prevent effective quantum error correction (QEC), necessitating reliance on quantum error mitigation (QEM) to enhance result fidelity from quantum c...
A Quantum-Inspired Bilevel Optimization Algorithm for the First Responder Network Design Problem
Anthony Karahalios, Sridhar Tayur, Ananth Tenneti +3 more·Jan 23, 2024
In the aftermath of a sudden catastrophe, first responders (FRs) strive to reach and rescue immobile victims. Simultaneously, civilians use the same roads to evacuate, access medical facilities and shelters, or reunite with their relatives via privat...
New spectral-parameter dependent solutions of the Yang-Baxter equation
A. Garkun, Suvendu K. Barik, Aleksey K. Fedorov +1 more·Jan 23, 2024
The Yang-Baxter Equation (YBE) plays a crucial role for studying integrable many-body quantum systems. Many known YBE solutions provide various examples ranging from quantum spin chains to superconducting systems. Models of solvable statistical mecha...
The Security Performance Analysis of Blockchain System Based on Post-Quantum Cryptography - A Case Study of Cryptocurrency Exchanges
Abel C. H. Chen·Jan 23, 2024
The current blockchain system for cryptocurrency exchanges primarily employs elliptic curve cryptography (ECC) for generating key pairs in wallets, and elliptic curve digital signature algorithms (ECDSA) for generating signatures in transactions. Con...
Optimal compilation of parametrised quantum circuits
J. Wetering, Richie Yeung, Tuomas Laakkonen +1 more·Jan 23, 2024
Parametrised quantum circuits contain phase gates whose phase is determined by a classical algorithm prior to running the circuit on a quantum device. Such circuits are used in variational algorithms like QAOA and VQE. In order for these algorithms t...
Qubit fidelity distribution under stochastic Schrödinger equations driven by classical noise
Robert de Keijzer, Luke Visser, O. Tse +1 more·Jan 22, 2024
Environmental noise affecting controlled quantum systems is typically described by a dissipative Lindblad equation, which captures the system's average state through the density matrix ρ. One approach to deriving this equation involves a stochastic o...
State-Averaged Orbital-Optimized VQE: A quantum algorithm for the democratic description of ground and excited electronic states
Martin Beseda, Silvie Ill'esov'a, Saad Yalouz +1 more·Jan 22, 2024
The electronic structure problem is one of the main problems in modern theoretical chemistry. While there are many already-established methods both for the problem itself and its applications like semi-classical or quantum dynamics, it remains a comp...
Exponential Quantum Advantages for Practical Non-Hermitian Eigenproblems.
Xiao-Ming Zhang, Yukun Zhang, Wenhao He +1 more·Jan 22, 2024
Non-Hermitian physics has emerged as a rich field of study, with applications ranging from PT-symmetry breaking and skin effects to non-Hermitian topological phase transitions. Yet most studies remain restricted to small-scale or classically tractabl...
Practicality of training a quantum-classical machine in the NISQ era
T. Dutta, Alex Jin, Clarence Liu Huihong +2 more·Jan 22, 2024
Advancements in classical computing have significantly enhanced machine learning applications, yet inherent limitations persist in terms of energy, resource and speed. Quantum machine learning algorithms offer a promising avenue to overcome these lim...
Universal scaling hypothesis of quantum spatial search in complex networks
Reiko Sato, T. Nikuni, Kayoko Nohara +2 more·Jan 22, 2024
Since quantum spatial searches on networks have a strong network dependence, the question arises whether the universal perspective exists in this quantum algorithm for various networks. Here, we propose a universal scaling hypothesis of the quantum s...
Evaluation of QCNN-LSTM for Disability Forecasting in Multiple Sclerosis Using Sequential Multisequence MRI
John D. Mayfield, I. E. Naqa·Jan 22, 2024
Introduction Quantum Convolutional Neural Network (QCNN)-Long Short-Term Memory (LSTM) models were studied to provide sequential relationships for each timepoint in MRIs of patients with Multiple Sclerosis (MS). In this pilot study, we compared three...
Quantum Architecture Search with Unsupervised Representation Learning
Yize Sun, Zixin Wu, Volker Tresp +1 more·Jan 21, 2024
Unsupervised representation learning presents new opportunities for advancing Quantum Architecture Search (QAS) on Noisy Intermediate-Scale Quantum (NISQ) devices. QAS is designed to optimize quantum circuits for Variational Quantum Algorithms (VQAs)...