Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Boolean Matching Reversible Circuits: Algorithm and Complexity
Tian-Fu Chen, Jie-Hong Roland Jiang·Apr 18, 2024
Boolean matching is an important problem in logic synthesis and verification. Despite being well-studied for conventional Boolean circuits, its treatment for reversible logic circuits remains largely, if not completely, missing. This work provides th...
Scalable Spin Squeezing from Critical Slowing Down in Short-Range Interacting Systems.
T. Roscilde, Filippo Caleca, A. Angelone +1 more·Apr 18, 2024
Long-range spin-spin interactions are known to generate nonequilibrium dynamics that can squeeze the collective spin of a quantum spin ensemble in a scalable manner, leading to states whose metrologically useful entanglement grows with system size. H...
Fermionic quantum simulation on Andreev bound state superlattices
Peter D. Johannsen, C. Schrade·Apr 18, 2024
Arrays of superconducting qubits and cavities offer a promising route for realizing artificial materials. However, many analog simulations on superconducting circuit hardware have focused on bosonic systems. Fermionic simulations, in contrast, have l...
Tailoring Fault-Tolerance to Quantum Algorithms
Zhuangzhuang Chen, Narayanan Rengaswamy·Apr 18, 2024
The standard approach to universal fault-tolerant quantum computing is to develop a general purpose quantum error correction mechanism that can implement a universal set of logical gates fault-tolerantly. Given such a scheme, any quantum algorithm ca...
Quantum-inspired Techniques in Tensor Networks for Industrial Contexts
Alejandro Mata Ali, Iñigo Perez Delgado, Aitor Moreno Fdez. de Leceta·Apr 17, 2024
In this paper we present a study of the applicability and feasibility of quantum-inspired algorithms and techniques in tensor networks for industrial environments and contexts, with a compilation of the available literature and an analysis of the use...
Energetics of Trapped-Ion Quantum Computation
Francisca Góis, Marco Pezzutto, Yasser Omar·Apr 17, 2024
The question of the energetic efficiency of quantum computers has gained increasing attention recently. A precise understanding of the resources required to operate a quantum computer with a targeted computational performance and how the energy requi...
Compression of Quantum Shallow-Circuit States.
Yuxiang Yang·Apr 17, 2024
Shallow quantum circuits feature not only computational advantages over their classical counterparts but also cutting-edge applications. Storing quantum information generated by shallow circuits is a fundamental question of both theoretical and pract...
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...