Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
QSRA: A QPU Scheduling and Resource Allocation Approach for Cloud-Based Quantum Computing
Binhan Lu, Zhaoyun Chen, Yuchun Wu·Nov 8, 2024
Quantum cloud platforms, which rely on Noisy Intermediate-Scale Quantum (NISQ) devices, face significant challenges in efficiently managing quantum programs. This paper proposes a QPU Scheduling and Resource Allocation (QSRA) approach to address thes...
Theory and Experimental Demonstration of Wigner Tomography of Unknown Unitary Quantum Gates
A. Devra, L. V. Damme, F. V. Ende +2 more·Nov 8, 2024
We investigate the tomography of unknown unitary quantum processes within the framework of a finite-dimensional Wigner-type representation. This representation provides a rich visualization of quantum operators by depicting them as shapes assembled a...
Traceable random numbers from a non-local quantum advantage
Gautam A. Kavuri, Jasper Palfree, Dileep V. Reddy +20 more·Nov 8, 2024
The unpredictability of random numbers is fundamental to both digital security1,2 and applications that fairly distribute resources3,4. However, existing random number generators have limitations—the generation processes cannot be fully traced, audit...
Benefits and Risks of Using ChatGPT4 as a Teaching Assistant for Computer Science Students
Yaiza Aragon'es-Soria, Julia Kotovich, Chitsutha Soomlek +1 more·Nov 8, 2024
Upon release, ChatGPT3.5 shocked the software engineering community by its ability to generate answers to specialized questions about coding. Immediately, many educators wondered if it was possible to use the chatbot as a support tool that helps stud...
Quantum real-time evolution using tensor renormalization group methods
M. Hite, Y. Meurice·Nov 8, 2024
We introduce an approach for approximate real-time evolution of quantum systems using Tensor Renormalization Group (TRG) methods originally developed for imaginary time. We use Higher- Order TRG (HOTRG) to generate a coarse-grained time evolution ope...
Entanglement measurement based on convex hull properties
Hao-Nan Qiang, Jing-Ling Chen·Nov 8, 2024
Quantum entanglement is a unique correlation phenomenon in quantum mechanics, and the measurement of quantum entanglement plays an important role in quantum computing and quantum communication. Many mainstream entanglement criteria and measurement me...
A nonstabilizerness monotone from stabilizerness asymmetry
Poetri Sonya Tarabunga, M. Frau, Tobias Haug +2 more·Nov 8, 2024
We introduce a nonstabilizerness monotone which we name basis-minimized stabilizerness asymmetry (BMSA). It is based on the notion of G-asymmetry, a measure of how much a certain state deviates from being symmetric with respect to a symmetry group G....
Unstructured Adiabatic Quantum Optimization: Optimality with Limitations
Arthur Braida, Shantanav Chakraborty, Alapan Chaudhuri +4 more·Nov 8, 2024
In the circuit model of quantum computing, amplitude amplification techniques can be used to find solutions to NP-hard problems defined on n-bits in time poly(n)2n/2. In this work, we investigate whether such general statements can be made for adiaba...
Scalable feedback stabilization of quantum light sources on a CMOS chip
D. Kramnik, I. Wang, Anirudh Ramesh +8 more·Nov 8, 2024
Silicon photonics could soon be used to create the vast numbers of physical qubits needed to achieve useful quantum information processing by leveraging mature complementary metal–oxide–semiconductor (CMOS) manufacturing to miniaturize optical device...
String Breaking in the Heavy Quark Limit with Scalable Circuits
Anthony N. Ciavarella·Nov 8, 2024
Quantum simulations of non-Abelian gauge theories require efficient mappings onto quantum computers and practical state preparation and measurement procedures. A truncation of the Hilbert space of non-Abelian lattice gauge theories with matter in the...
Topological stabilizer models on continuous variables
Julio C. Magdalena de la Fuente, Tyler D. Ellison, Meng Cheng +1 more·Nov 7, 2024
We construct a family of two-dimensional topological stabilizer codes on continuous variable (CV) degrees of freedom, which generalize homological rotor codes and the toric-GKP code. Our topological codes are built using the concept of boson condensa...
Optimal quantum algorithm for Gibbs state preparation
Cambyse Rouzé, Daniel Stilck França, Álvaro M. Alhambra·Nov 7, 2024
It is of great interest to understand the thermalization of open quantum many-body systems, and how quantum computers are able to efficiently simulate that process. A recently introduced disispative evolution, inspired by existing models of open syst...
Quantum geometric tensor determines the pure-state i.i.d. conversion rate in the resource theory of asymmetry for any compact Lie group
Koji Yamaguchi, Yosuke Mitsuhashi, Tomohiro Shitara +1 more·Nov 7, 2024
Quantifying physical concepts in terms of the ultimate performance of a given task has been central to theoretical progress, as illustrated by thermodynamic entropy and entanglement entropy, which respectively quantify irreversibility and quantum cor...
Taming Rydberg Decay with Measurement-based Quantum Computation
Cheng-Cheng Yu, Zi-Han Chen, Yu-Hao Deng +3 more·Nov 7, 2024
Programmable neutral atom arrays show great promise for fault-tolerant quantum computing. A dominant physical error on this platform is qubit leakage and loss, notably decay errors from the Rydberg state during two-qubit gates. Such leakage events ar...
Belief propagation for general graphical models with loops
Pedro Hack, Jonas Hitter, C. Mendl +1 more·Nov 7, 2024
There is an increasing interest in scaling tensor network methods through belief propagation (BP), as well as increasing the accuracy of BP through tensor network methods. We develop a unification framework that takes an arbitrary graphical model wit...
Mixing time of quantum Gibbs sampling for random sparse Hamiltonians
Akshar Ramkumar, Mehdi Soleimanifar·Nov 7, 2024
Providing evidence that quantum computers can efficiently prepare low-energy or thermal states of physically relevant interacting quantum systems is a major challenge in quantum information science. A newly developed quantum Gibbs sampling algorithm ...
Quantum Adiabatic Optimization with Rydberg Arrays: Localization Phenomena and Encoding Strategies
Lisa Bombieri, Zhongda Zeng, Roberto Tricarico +5 more·Nov 7, 2024
Quantum adiabatic optimization seeks to solve combinatorial problems using quantum dynamics, requiring the Hamiltonian of the system to align with the problem of interest. However, these Hamiltonians are often incompatible with the native constraints...
Bell state generation and CNOT operation using on-demand identical photons from shape-controlled spatially ordered quantum dots
Qi Huang, Swarnabha Chattaraj, Lucas Jordao +3 more·Nov 7, 2024
Fault tolerant on-chip photonic quantum computation is enormously helped by (a) deterministic generation of the needed thousands to millions of photon qubits from (b) quantum emitters in designed spatially ordered arrays to enable networks for implem...
FQsun: A Configurable Wave Function-Based Quantum Emulator for Power-Efficient Quantum Simulations
Tuan Hai Vu, V. Le, Hoai Luan Pham +2 more·Nov 7, 2024
Quantum computers are promising powerful computers for solving complex problems, but access to real quantum hardware remains limited due to high costs. Although software simulators like Qiskit, ProjectQ, and Pennylane offer flexibility and support fo...
Optimal Routing Protocols for Reconfigurable Atom Arrays
Nathan Constantinides, Ali Fahimniya, Dhruv Devulapalli +5 more·Nov 7, 2024
Neutral atom arrays have emerged as a promising platform for both analog and digital quantum processing. Recently, devices capable of reconfiguring arrays during quantum processes have enabled new applications for these systems. Atom reconfiguration,...