Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Deterministic photon source of genuine three-qubit entanglement
Yijian Meng, M. L. Chan, Rasmus B Nielsen +10 more·Oct 18, 2023
Deterministic photon sources allow long-term advancements in quantum optics. A single quantum emitter embedded in a photonic resonator or waveguide may be triggered to emit one photon at a time into a desired optical mode. By coherently controlling a...
Simulating two-dimensional lattice gauge theories on a qudit quantum computer
M. Meth, Jinglei Zhang, J. Haase +11 more·Oct 18, 2023
Particle physics describes the interplay of matter and forces through gauge theories. Yet, the intrinsic quantum nature of gauge theories makes important problems notoriously difficult for classical computational techniques. Quantum computers offer a...
Quantum radio astronomy: Data encodings and quantum image processing
T. Brunet, Emma Tolley, Stefano Corda +3 more·Oct 18, 2023
We explore applications of quantum computing for radio interferometry and astronomy using recent developments in quantum image processing. We evaluate the suitability of different quantum image representations using a toy quantum computing image reco...
Towards Quantum Dynamics Simulation of Physical Systems: A Survey
Rikteem Bhowmick, N. Mohan, Devesh Kumar +2 more·Oct 18, 2023
After the emergence of quantum mechanics and realising its need for an accurate understanding of physical systems, numerical methods were being used to undergo quantum mechanical treatment. With increasing system correlations and size, numerical meth...
NuQKD: A Modular Quantum Key Distribution Simulation Framework for Engineering Applications
K. Gkouliaras, Vasileios Theos, Phil Evans +1 more·Oct 18, 2023
An experimental Quantum Key Distribution (QKD) implementation requires advanced costly hardware, unavailable in most research environments, making protocol testing and performance evaluation complicated. This has been a major motivation for the devel...
Quantum computing simulation of a mixed spin-boson Hamiltonian and its performance for a cavity quantum electrodynamics problem
M. Tudorovskaya, David Muñoz Ramo·Oct 17, 2023
In this paper, we aim to broaden the spectrum of possible applications of quantum computers and use their capabilities to investigate effects in cavity quantum electrodynamics ("cavity QED"). Interesting application examples are material properties, ...
Dynamic Quantum Circuit Compilation
Kun Fang, Munan Zhang, Ruqi Shi +1 more·Oct 17, 2023
The practical applications of quantum computing are currently limited by the small number of available qubits. Recent advances in quantum hardware have introduced mid-circuit measurements and resets, enabling the reuse of measured qubits and thus red...
Hybrid Quantum-Classical Graph Neural Networks for Tumor Classification in Digital Pathology
Anupama Ray, Dhiraj Madan, Srushti Patil +2 more·Oct 17, 2023
Advances in classical machine learning and single-cell technologies have paved the way for understanding interactions between disease cells and tumor microenvironments towards accelerating therapeutic discovery. However, challenges in these machine l...
Stochastic Quantum Sampling for Non-Logconcave Distributions and Estimating Partition Functions
Guneykan Ozgul, Xiantao Li, Mehrdad Mahdavi +1 more·Oct 17, 2023
We present quantum algorithms for sampling from non-logconcave probability distributions in the form of $\pi(x) \propto \exp(-\beta f(x))$. Here, $f$ can be written as a finite sum $f(x):= \frac{1}{N}\sum_{k=1}^N f_k(x)$. Our approach is based on qua...
Autonomous Quantum Error Correction of Gottesman-Kitaev-Preskill States.
D. Lachance-Quirion, M. Lemonde, J. Simoneau +12 more·Oct 17, 2023
The Gottesman-Kitaev-Preskill (GKP) code encodes a logical qubit into a bosonic system with resilience against single-photon loss, the predominant error in most bosonic systems. Here we present experimental results demonstrating quantum error correct...
Weyl channels for multipartite systems
Tomas Basile, Jose Alfredo de Leon, Alejandro Fonseca +2 more·Oct 17, 2023
Quantum channels, a subset of quantum maps, describe the unitary and non-unitary evolution of quantum systems. We study a generalization of the concept of Pauli maps to the case of multipartite high dimensional quantum systems through the use of the ...
Measurement of cryoelectronics heating using a local quantum dot thermometer in silicon
Mathieu de Kruijf, G. M. Noah, A. Gomez-Saiz +2 more·Oct 17, 2023
Silicon technology offers the enticing opportunity for monolithic integration of quantum and classical electronic circuits. However, the power consumption levels of classical electronics may compromise the local chip temperature and hence the fidelit...
Optimizing edge-state transfer in a Su-Schrieffer-Heeger chain via hybrid analog-digital strategies
Sebastián V. Romero, Xi Chen, G. Platero +1 more·Oct 17, 2023
The Su-Schrieffer-Heeger (SSH) chain, which serves as a paradigmatic model for comprehending topological phases and their associated edge states, plays an essential role in advancing our understanding of quantum materials and quantum information proc...
Calibrating the role of entanglement in variational quantum circuits
Azar C. Nakhl, T. Quella, Muhammad Usman·Oct 16, 2023
Entanglement is a key property of quantum computing that separates it from its classical counterpart, however, its exact role in the performance of quantum algorithms, especially variational quantum algorithms, is not well understood. In this work, w...
Quantum hardware calculations of the activation and dissociation of nitrogen on iron clusters and surfaces.
Georgia Christopoulou, Cono Di Paola, Floris Elzinga +3 more·Oct 16, 2023
Catalytic processes are the cornerstone of chemical industry, and catalytic conversion of nitrogen to ammonia remains one of the largest industrial processes implemented. Rational design of catalysts and catalytic reactions largely depends on approxi...
Quantum Error Transmutation
Daniel Zhang, T. Cubitt·Oct 16, 2023
We introduce a generalisation of quantum error correction, relaxing the requirement that a code should identify and correct a set of physical errors on the Hilbert space of a quantum computer exactly, instead allowing recovery up to a pre-specified a...
Quantum error channels in high energetic photonic systems
B. Hiesmayr, W. Krzemie'n, M. Bala·Oct 16, 2023
In medical applications—such as positron emission tomography (PET)—511 keV photons that experience Compton scattering are studied. We present a consistent framework based on quantum error-correction channels—intensively studied in quantum computing—t...
Tensor-Network Decoding Beyond 2D
C. Piveteau, Christopher T. Chubb, J. Renes·Oct 16, 2023
Decoding algorithms based on approximate tensor-network (TN) contraction have proven tremendously successful in decoding two-dimensional (2D) local quantum codes such as toric or surface codes and color codes, effectively achieving optimal decoding a...
Heralded Optical Entanglement Generation via the Graph Picture of Linear Quantum Networks
Seungbeom Chin, Marcin Karczewski, Yong-Su Kim·Oct 16, 2023
Non-destructive heralded entanglement with photons is a valuable resource for quantum information processing. However, they generally entail ancillary particles and modes that amplify the circuit intricacy. To address this challenge, a recent work \c...
ADAPT-QAOA with a classically inspired initial state
V. Sridhar, Yanzhu Chen, Bryan T. Gard +2 more·Oct 15, 2023
Quantum computing may provide advantage in solving classical optimization problems. One promising algorithm is the quantum approximate optimization algorithm (QAOA). There have been many proposals for improving this algorithm, such as using an initia...