Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Engineering Topological States and Quantum‐Inspired Information Processing Using Classical Circuits
Tian Chen, Weixuan Zhang, Deyuan Zou +2 more·Sep 16, 2024
Based on the correspondence between circuit Laplacian and Schrodinger equations, recent investigations have shown that classical electric circuits can be used to simulate various topological physics and Schrödinger's equation. Furthermore, a series o...
Quantum Codes for Asymmetric Channels: ZZZY Surface Codes
Diego Forlivesi, L. Valentini, M. Chiani·Sep 16, 2024
We introduce surface ZZZY codes, a novel family of quantum error-correcting codes designed for asymmetric channels. Derived from standard surface codes through tailored modification of generators, ZZZY codes can be decoded by the minimum weight perfe...
CircInspect: Integrating Visual Circuit Analysis, Abstraction, and Real-Time Development in Quantum Debugging
Mushahid Khan, Prashant J. Nair, Olivia Di Matteo·Sep 15, 2024
Software bugs typically result from errors in specifications or code translation. While classical software engineering has evolved with various tools and methodologies to tackle such bugs, the emergence of quantum computing presents unique chal-lenge...
Constructing Noise-Robust Quantum Gates via Pontryagin's Maximum Principle
Joshua Hanson, D. Lucarelli·Sep 15, 2024
Reliable quantum information technologies depend on precise actuation and techniques to mitigate the effects of un-desired disturbances such as environmental noise and imperfect calibration. In this work, we present a general framework based in geome...
Quantum data encoding as a distinct abstraction layer in the design of quantum circuits
Gabriele Agliardi, Enrico Prati·Sep 14, 2024
Complex quantum circuits are constituted by combinations of quantum subroutines. The computation is possible as long as the quantum data encoding is consistent throughout the circuit. Despite its fundamental importance, the formalization of quantum d...
A Fiber-pigtailed Quantum Dot Device Generating Indistinguishable Photons at GHz Clock-rates
Lucas Rickert, Kinga Żołnacz, Daniel A. Vajner +11 more·Sep 13, 2024
Solid-state quantum light sources based on semiconductor quantum dots (QDs) are increasingly employed in photonic quantum information applications. Especially when moving towards real-world scenarios outside shielded lab environments, the efficient a...
Three-Dimensional and Selective Displacement Sensing of a Levitated Nanoparticle via Spatial Mode Decomposition
Thomas Dinter, Reece Roberts, Thomas Volz +2 more·Sep 13, 2024
We propose and experimentally demonstrate a novel detection method that significantly improves the precision of real-time measurement of the three-dimensional displacement of a levitated dipolar scatterer. Our technique relies on spatial mode sorting...
Simulating a quasiparticle on a quantum device
Rimika Jaiswal, I. Lovas, L. Balents·Sep 13, 2024
We propose a variational approach to explore quasiparticle excitations in interacting quantum many-body systems, motivated by the potential in leveraging near-term noisy intermediate scale quantum devices for quantum state preparation. By exploiting ...
Classification of electronic structures and state preparation for quantum computation of reaction chemistry
Maximilian Morchen, Guang Hao Low, Thomas Weymuth +3 more·Sep 13, 2024
Quantum computation for chemical problems will require the construction of guiding states with sufficient overlap with a target state. Since easily available and initializable mean-field states are characterized by an overlap that is reduced for mult...
Quantum resource theory of coding for error correction
Dong-Sheng Wang, Yuan-Dong Liu, Yun-Jiang Wang +1 more·Sep 12, 2024
Error-correction codes are central for fault-tolerant information processing. Here we develop a rigorous framework to describe various coding models based on quantum resource theory of superchannels. We find, by treating codings as superchannels, a h...
Demonstration of Scully–Drühl-type quantum erasers on quantum computers
Bo-Hung Chen, Dah-Wei Chiou, Hsiu-Chuan Hsu·Sep 12, 2024
We present a novel quantum circuit that genuinely implements the Scully–Drühl-type delayed-choice quantum eraser, where the two recorders of the which-way information directly interact with the signal qubit and remain spatially separated. Experiments...
Towards Scalable Quantum Networks
Connor Howe, Mohsin Aziz, Ali Anwar·Sep 12, 2024
This paper presents a comprehensive study on the scalability challenges and opportunities in quantum communication networks, with the goal of determining parameters that impact networks most as well as the trends that appear when scaling networks. We...
GAN Decoder on a Quantum Toric Code for Noise‐Robust Quantum Teleportation
Jiaxin Li, Zhimin Wang, Alberto Ferrara +2 more·Sep 11, 2024
A generative adversarial network (GAN)‐based decoder is proposed for quantum topological codes and applied it to enhance a quantum teleportation protocol under depolarizing noise. By constructing and training the GAN's generator and discriminator net...
From Feynman integrals to quantum algorithms: the Loop-Tree Duality connection
G. Sborlini·Sep 11, 2024
In the context of high-energy particle physics, a reliable theory-experiment confrontation requires precise theoretical predictions. This translates into accessing higher-perturbative orders, and when we pursue this objective, we inevitably face the ...
In Situ Tunable Interaction with an Invertible Sign between a Fluxonium and a Post Cavity
Desislava Atanasova, Ian Yang, Teresa Honigl-Decrinis +3 more·Sep 11, 2024
Quantum computation with bosonic modes presents a powerful paradigm for harnessing the principles of quantum mechanics to perform complex information processing tasks. In constructing a bosonic qubit with superconducting circuits, nonlinearity is typ...
A High-Performance List Decoding Algorithm for Surface Codes with Erroneous Syndrome
Jifan Liang, Qianfan Wang, Lvzhou Li +1 more·Sep 11, 2024
Quantum error-correcting codes (QECCs) are necessary for fault-tolerant quantum computation. Surface codes are a class of topological QECCs that have attracted significant attention due to their exceptional error-correcting capabilities and easy impl...
Resource-Efficient Context-Aware Dynamical Decoupling Embedding for Arbitrary Large-Scale Quantum Algorithms
Paul Coote, Roman Dimov, Smarak Maity +3 more·Sep 9, 2024
We introduce and implement GraphDD: an efficient method for real-time, circuit-specific, optimal embedding of dynamical decoupling (DD) into executable quantum algorithms. We demonstrate that for an arbitrary quantum circuit, GraphDD exactly refocuse...
Circuit optimization of qubit IC-POVMs for shadow estimation
Zhou You, Qing Liu, You Zhou·Sep 9, 2024
Extracting information from quantum systems is crucial in quantum physics and information processing. Methods based on randomized measurements, like shadow estimation, show advantages in effectively achieving such tasks. However, randomized measureme...
Universal quantum gate set for Gottesman–Kitaev–Preskill logical qubits
V. G. Matsos, C. Valahu, M. Millican +4 more·Sep 9, 2024
Conventional approaches towards creating a large-scale, fault-tolerant quantum computer require an error correction scheme that uses multiple physical qubits to encode one logical qubit of protected quantum information. A key limiting factor in reali...
Expressing and Analyzing Quantum Algorithms with Qualtran
M. Harrigan, T. Khattar, Charles Yuan +5 more·Sep 6, 2024
Quantum computing's transition from theory to reality has spurred the need for novel software tools to manage the increasing complexity, sophistication, toil, and fallibility of quantum algorithm development. We present Qualtran, an open-source libra...