Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Density Matrix Renormalization Group Study of Domain Wall Qubits
G. Qu, Ji Zou, Daniel Loss +1 more·Dec 16, 2024
Nanoscale topological spin textures in magnetic systems are emerging as promising candidates for scalable quantum architectures. Despite their potential as qubits, previous studies have been limited to semiclassical approaches, leaving a critical gap...
A Framework for Debugging Quantum Programs
Damian Rovara, Lukas Burgholzer, Robert Wille·Dec 16, 2024
Recent advancements in quantum computing software are gradually increasing the scope and size of quantum programs being developed. At the same time, however, these larger programs provide more possibilities for functional errors that are harder to de...
The Stabilizer Bootstrap of Quantum Machine Learning with up to 10000 qubits
Yuqing Li, Jinglei Cheng, Xulong Tang +3 more·Dec 16, 2024
Quantum machine learning is considered one of the flagship applications of quantum computers, where variational quantum circuits could be the leading paradigm both in the near-term quantum devices and the early fault-tolerant quantum computers. Howev...
Snakes and Ladders: Adapting the Surface Code to Defects
Catherine Leroux, Sophia F. Lin, P. Bienias +4 more·Dec 16, 2024
One of the critical challenges solid-state quantum processors face is the presence of fabrication imperfections and two-level systems, which render certain qubits and gates either inoperable or much noisier than tolerable by quantum error-correction ...
Differential Privacy Preserving Distributed Quantum Computing
Hui Zhong, Keyi Ju, Jiachen Shen +5 more·Dec 16, 2024
Existing quantum computers can only operate with hundreds of qubits in the Noisy Intermediate-Scale Quantum (NISQ) state, while quantum distributed computing (QDC) is regarded as a reliable way to address this limitation, allowing quantum computers t...
Fast single-qubit gates for continuous dynamically decoupled systems
M. Senatore, Daniel Campbell, James A. Williams +1 more·Dec 16, 2024
Environmental noise that couples longitudinally to a quantum system dephases that system and can limit its coherence lifetime. Performance using quantum superposition in clocks, information processors, communication networks, and sensors depends on c...
Coherent information as a mixed-state topological order parameter of fermions
Ze-Min Huang, Luis Colmenarez, Markus Müller +1 more·Dec 16, 2024
Quantum error correction protects quantum information against decoherence, provided the noise strength remains below a critical threshold. This threshold marks the critical point for the decoding phase transition. Here, we connect this transition in ...
The suboptimality ratio of projective measurements restricted to low-rank subspaces
Albert Senen-Cerda·Dec 16, 2024
Limitations in measurement instruments can hinder the implementation of some quantum algorithms. Understanding the suboptimality of such measurements with restrictions may then lead to more efficient measurement policies. In this paper, we theoretica...
Security and Fairness in Multiparty Quantum Secret Sharing Protocol
Alessio Di Santo, W. Tiberti, D. Cassioli·Dec 16, 2024
Quantum secret sharing (QSS) is a cryptographic protocol that leverages quantum mechanics to distribute a secret among multiple parties. With respect to the classical counterpart, in QSS, the secret is encoded into quantum states and shared by a deal...
Efficient Layered New Bit-Flipping QC-MDPC Decoder for BIKE Post-Quantum Cryptography
Jiaxuan Cai, Xinmiao Zhang·Dec 16, 2024
The medium-density parity-check (MDPC) code-based Bit Flipping Key Encapsulation (BIKE) mechanism remains a candidate for post-quantum cryptography standardization. The latest version utilizes a new bit-flipping (BF) decoding algorithm, which decides...
Surveying optically addressable spin qubits for quantum information and sensing technology
Calysta A. Tesiman, Mark Oxborrow, Max Attwood·Dec 15, 2024
Quantum technologies offer ways to solve certain tasks more quickly, efficiently, and with greater precision than their classical counterparts. Yet substantial challenges remain in the construction of sufficiently error-free and scalable quantum plat...
Non-Markovian Noise Suppression Simplified through Channel Representation
Zhenhuan Liu, Yunlong Xiao, Zhenyu Cai·Dec 15, 2024
Non-Markovian noise, arising from the memory effect in the environment, poses substantial challenges to conventional quantum noise suppression protocols, including quantum error correction and mitigation. We introduce a channel representation for arb...
SEE: Sememe Entanglement Encoding for Transformer-bases Models Compression
Jing Zhang, Shuzhen Sun, Peng Zhang +5 more·Dec 15, 2024
Transformer-based large language models exhibit groundbreaking capabilities, but their storage and computational costs are prohibitively high, limiting their application in resource-constrained scenarios. An effective approach is to eliminate redunda...
Experimental demonstration of enhanced quantum tomography via quantum reservoir processing
Tanjung Krisnanda, Pengtao Song, Adrian Copetudo +4 more·Dec 15, 2024
Quantum machine learning is a rapidly advancing discipline that leverages the features of quantum mechanics to enhance the performance of computational tasks. Quantum reservoir processing (QRP), which allows efficient optimization of a single output ...
Qubit Optimized Quantum Implementation of SLIM
H. Cildiroglu, O. Yayla·Dec 14, 2024
The advent of quantum computing has profound implications for current technologies, offering advancements in optimization while posing significant threats to cryptographic algorithms. Public-key cryptosystems relying on prime factorization or discret...
A simple quantum simulation algorithm with near-optimal precision scaling
A. Kalev, I. Hen·Dec 14, 2024
Quantum simulation is a foundational application for quantum computers, projected to offer insights into complex quantum systems beyond the reach of classical computation. However, with the exception of Trotter-based methods, which suffer from subopt...
Partial Chebyshev polynomials and fan graphs.
Wojciech Mlotkowski, Nobuaki Obata·Dec 14, 2024
Motivated by the product formula of the Chebyshev polynomials of the second kind [Formula: see text], we newly introduce the partial Chebyshev polynomials [Formula: see text] and [Formula: see text] and derive their basic properties, relations to the...
Detection states of ions in a Paul trap via conventional and quantum machine learning algorithms
Ilia Khomchenko, A. Fionov, A. Alekseev +4 more·Dec 14, 2024
Trapped ions are among the leading platforms for quantum technologies, particularly in the field of quantum computing. Detecting states of trapped ions is essential for ensuring high-fidelity readouts of quantum states. In this work, we develop and b...
Nonlocality of Quantum States can be Transitive
Kai-Siang Chen, Gelo Noel M. Tabia, Chung-Yun Hsieh +2 more·Dec 13, 2024
As a striking manifestation of quantum entanglement, nonlocality has long played a pivotal role in shaping our understanding of the quantum world. When considering a Bell test involving three parties, we may even find a remarkable situation where the...
Floquet-Thermalization via Instantons near Dynamical Freezing
Rohit Mukherjee, Haoyu Guo, Debanjan Chowdhury·Dec 13, 2024
Periodically driven Floquet quantum many-body systems have revealed new insights into the rich interplay of thermalization, and growth of entanglement. The phenomenology of dynamical freezing, whereby a translationally invariant many-body system exhi...