Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Method for Efficient Large-Scale Cryogenic Characterization of CMOS Technologies
J. Eastoe, G. M. Noah, Debargha Dutta +3 more·Apr 17, 2024
Semiconductor integrated circuits operated at cryogenic temperature will play an essential role in quantum computing architectures. These can offer equivalent or superior performance to their room-temperature counterparts while enabling a scaling up ...
Optimized measurement-free and fault-tolerant quantum error correction for neutral atoms
Stefano Veroni, Markus Müller, G. Giudice·Apr 17, 2024
A major challenge in performing quantum error correction (QEC) is implementing reliable measurements and conditional feed-forward operations. In quantum computing platforms supporting unconditional qubit resets, or a constant supply of fresh qubits, ...
Fault-tolerant quantum computing with the parity code and biased-noise qubits
A. Messinger, Valentin Torggler, Berend Klaver +2 more·Apr 17, 2024
We present a fault-tolerant universal quantum computing architecture based on a code concatenation of biased-noise qubits and the parity architecture. The parity architecture can be understood as a low-density parity-check code tailored specifically ...
Bayesian Parameterized Quantum Circuit Optimization (BPQCO): a task and hardware-dependent approach
Alexander Ben'itez-Buenache, Queralt Portell-Montserrat·Apr 17, 2024
Variational quantum algorithms (VQAs) have emerged as a promising quantum alternative for solving optimization and machine learning problems using parameterized quantum circuits (PQCs). The design of these circuits influences the ability of the algor...
Fidelity decay and error accumulation in random quantum circuits
Nadir Samos, Rafał Bistroń, Marcin Rudzi'nski +3 more·Apr 17, 2024
Fidelity decay captures the inevitable state degradation in any practical implementation of a quantum process. We devise bounds for the decay of fidelity for a generic evolution given by a random quantum circuit model that encompasses errors arising ...
Stabilizer entropies are monotones for magic-state resource theory
Lorenzo Leone, Lennart Bittel·Apr 17, 2024
Magic-state resource theory is a powerful tool with applications in quantum error correction, many-body physics, and classical simulation of quantum dynamics. Despite its broad scope, finding tractable resource monotones has been challenging. Stabili...
Solving power grid optimization problems with Rydberg atoms
Nora M. Bauer, Kubra Yeter-Aydeniz, Elias Kokkas +1 more·Apr 17, 2024
The rapid development of neutral atom quantum hardware provides a unique opportunity to design hardware-centered algorithms for solving real-world problems aimed at establishing quantum utility. In this work, we study the performance of two such algo...
A quantum eigenvalue solver based on tensor networks
Oskar Leimkuhler, K. Birgitta Whaley·Apr 16, 2024
Electronic ground states are of central importance in chemical simulations, but have remained beyond the reach of efficient classical algorithms except in cases of weak electron correlation or one-dimensional spatial geometry. We introduce a hybrid q...
Simulating Electronic Structure on Bosonic Quantum Computers.
Rishab Dutta, Nam P Vu, Chuzhi Xu +7 more·Apr 16, 2024
Quantum harmonic oscillators, or qumodes, provide a promising and versatile framework for quantum computing. Unlike qubits, which are limited to two discrete levels, qumodes have an infinite-dimensional Hilbert space, making them well-suited for a wi...
Scatter-Gather DMA Performance Analysis Within an SoC-Based Control System for Trapped-Ion Quantum Computing
Tiamike Dudley, Jim Plusquellic, E. Tsiropoulou +3 more·Apr 16, 2024
Scatter-gather dynamic-memory-access (SG-DMA) is utilized in applications that require high bandwidth and low latency data transfers between memory and peripherals, where data blocks, described using buffer descriptors (BDs), are distributed througho...
Spectroscopic Measurements and Models of Energy Deposition in the Substrate of Quantum Circuits by Natural Ionizing Radiation
J. W. Fowler, P. Szypryt, R. Bunker +16 more·Apr 16, 2024
Naturally occurring background radiation is a potential source of correlated decoherence events in superconducting qubits that will challenge error-correction schemes. In order to characterize the radiation environment in an unshielded laboratory rep...
Pulse engineering via projection of response functions
Nicolas Heimann, L. Broers, Ludwig Mathey·Apr 16, 2024
We present an iterative optimal control method of quantum systems, aimed at an implementation of a desired operation with optimal fidelity. The update step of the method is based on the linear response of the fidelity to the control operators, and it...
A Framework to Formulate Pathfinding Problems for Quantum Computing
Damian Rovara, Nils Quetschlich, Robert Wille·Apr 16, 2024
With the applications of quantum computing becoming more and more widespread, finding ways that allow end users without experience in the field to apply quantum computers to solve their individual problems is becoming a crucial task. However, current...
Quantum Algorithm for Copula-Based Risk Aggregation using Orthogonal Series Density Estimation
Hitomi Mori, Koichi Miyamoto·Apr 16, 2024
Quantum Monte Carlo integration (QMCI) provides a quadratic speed-up over its classical counterpart, and its applications have been investigated in various fields, including finance. This paper considers its application to risk aggregation, one of th...
Discovering Factorization Surface of Quantum Spin Chains with Machine Learning
Nakul Aggarwal, Keshav Das Agarwal, Tanoy Kanti Konar +2 more·Apr 16, 2024
Entanglement in quantum many-body systems is required for a variety of quantum information tasks, making it crucial to identify the parameter space in which the ground state is fully separable, known as the factorization surface (FS). Nonetheless, th...
Exploring Post Quantum Cryptography with Quantum Key Distribution for Sustainable Mobile Network Architecture Design
Sanzida Hoque, Abdullah Aydeger, Engin Zeydan·Apr 16, 2024
The proliferation of mobile networks and their increasing importance to modern life, combined with the emerging threat of quantum computing, present new challenges and opportunities for cyber-security. This paper addresses the complexity of protectin...
Warm-Start Variational Quantum Policy Iteration
Nico Meyer, Jakob Murauer, Alexander Popov +4 more·Apr 16, 2024
Reinforcement learning is a powerful framework aiming to determine optimal behavior in highly complex decision-making scenarios. This objective can be achieved using policy iteration, which requires to solve a typically large linear system of equatio...
Quantum Simulation of Open Quantum Dynamics via Non-Markovian Quantum State Diffusion
Yukai Guo, Xing Gao·Apr 16, 2024
Quantum simulation of non-Markovian open quantum dynamics is essential but challenging for standard quantum computers due to their non-Hermitian nature, leading to non-unitary evolution, and the limitations of available quantum resources. Here we int...
Hilbert Space Delocalization under Random Unitary Circuits
X. Turkeshi, P. Sierant·Apr 16, 2024
The unitary dynamics of a quantum system initialized in a selected basis state yield, generically, a state that is a superposition of all the basis states. This process, associated with the quantum information scrambling and intimately tied to the re...
A hybrid Quantum-Classical Algorithm for Mixed-Integer Optimization in Power Systems
P. Ellinas, Samuel Chevalier, Spyros Chatzivasileiadis·Apr 16, 2024
Mixed Integer Linear Programming (MILP) can be considered the backbone of the modern power system optimization process, with a large application spectrum, from Unit Commitment and Optimal Transmission Switching to verifying Neural Networks for power ...