Quantum

Paper

Informed Dynamic Scheduling for QLDPC Codes

Tzu-Hsuan Huang and Yeong-Luh Ueng,

Quantum 10, 1967 (2026).

Recent research has shown that syndrome-based belief propagation using layered scheduling (sLBP) can not only accelerate the convergence rate but also improve the error rate performance by b…

Paper

Theory-independent randomness generation from spatial symmetries

Caroline L. Jones, Stefan L. Ludescher, Albert Aloy, and Markus P. Müller,

Quantum 10, 1966 (2026).

We demonstrate a fundamental relation between the structures of physical space and of quantum theory: the set of quantum correlations in a rotational prepare-and-measure scenario can be deri…

Paper

Quantum geometric tensors from sub-bundle geometry

Marius A. Oancea, Thomas B. Mieling, and Giandomenico Palumbo,

Quantum 10, 1965 (2026).

The geometric properties of quantum states are crucial for understanding many physical phenomena in quantum mechanics, condensed matter physics, and optics. The central object describing the…

Paper

Quantum games and synchronicity

Adina Goldberg,

Quantum 10, 1964 (2026).

In the flavour of categorical quantum mechanics, we extend nonlocal games to allow quantum questions and answers, using quantum sets (special symmetric dagger Frobenius algebras) and the qua…

Paper

Exponential advantage in quantum sensing of correlated parameters

Sridhar Prabhu, Vladimir Kremenetski, Saeed A. Khan, Ryotatsu Yanagimoto, and Peter L. McMahon,

Quantum 10, 1963 (2026).

Conventionally in quantum sensing, the goal is to estimate one or more unknown parameters that are assumed to be deterministic – that is, they do not change between shots of the quantum-sens…

Paper

Harnessing Bayesian Statistics to Accelerate Iterative Quantum Amplitude Estimation

Qilin Li, Atharva Vidwans, Yazhen Wang, and Micheline B. Soley,

Quantum 10, 1962 (2026).

We establish a unified statistical framework that underscores the crucial role statistical inference plays in Quantum Amplitude Estimation (QAE), a task essential to fields ranging from chem…

Paper

Self-Testing Graph States Permitting Bounded Classical Communication

Uta Isabella Meyer, Ivan Šupić, Frédéric Grosshans, and Damian Markham,

Quantum 10, 1961 (2026).

Self-testing identifies quantum states and correlations that exhibit nonlocality, distinguishing them, up to local transformations, from other quantum states. Due to their strong nonlocality…

Paper

Resource-Dependent Complexity of Quantum Channels

Roy Araiza, Yidong Chen, Marius Junge, and Peixue Wu,

Quantum 10, 1960 (2026).

We introduce a new framework for quantifying the complexity of quantum channels, grounded in a suitably chosen resource set. This class of convex functions is designed to analyze the complex…

Paper

A decompositional framework for process theories in spacetime

Matthias Salzger and John H. Selby,

Quantum 10, 1959 (2026).

There has been a recent surge of interest within the field of quantum foundations regarding incorporating ideas from general relativity and quantum gravity. However, many quantum information…

Paper

Asymptotic robustness of entanglement in noisy quantum networks and graph connectivity

Fernando Lledó, Carlos Palazuelos, and Julio I. de Vicente,

Quantum 9, 1958 (2025).

Quantum networks are promising venues for quantum information processing. This motivates the study of the entanglement properties of the particular multipartite quantum states that underpin…

Paper

Isolated zero mode in a quantum computer from a duality twist

Sutapa Samanta, Derek S. Wang, Armin Rahmani, and Aditi Mitra,

Quantum 9, 1957 (2025).

Investigating the interplay of dualities, generalized symmetries, and topological defects beyond theoretical models is an important challenge in condensed matter physics and quantum material…

Paper

Quantum Complexity and Chaos in Many-Qudit Doped Clifford Circuits

Beatrice Magni and Xhek Turkeshi,

Quantum 9, 1956 (2025).

We investigate the emergence of quantum complexity and chaos in doped Clifford circuits acting on qudits of odd prime dimension $d$. Using doped Clifford Weingarten calculus and a replica tens…

Paper

Quantum Algorithm for Estimating Betti Numbers Using Cohomology Approach

Nhat A. Nghiem, Xianfeng David Gu, and Tzu-Chieh Wei,

Quantum 9, 1955 (2025).

Topological data analysis has emerged as a powerful tool for analyzing large-scale data. An abstract simplicial complex, in principle, can be built from data points, and by using tools from…

Paper

Double-bracket algorithm for quantum signal processing without post-selection

Yudai Suzuki, Bi Hong Tiang, Jeongrak Son, Nelly H. Y. Ng, Zoe Holmes, and Marek Gluza,

Quantum 9, 1954 (2025).

Quantum Signal Processing (QSP), a framework for implementing matrix-valued polynomials, is a fundamental primitive in various quantum algorithms. Despite its versatility, a potentially unde…

Paper

Ladder Operator Block-Encoding

William A. Simon, Carter M. Gustin, Kamil Serafin, Alexis Ralli, Gary R. Goldstein, and Peter J. Love,

Quantum 9, 1953 (2025).

We describe and analyze LOBE (Ladder Operator Block-Encoding), a framework for block-encoding ladder operators that act upon fermionic and bosonic modes. In this framework, we achieve effici…

Paper

Multi-time quantum process tomography on a superconducting qubit

Christina Giarmatzi, Tyler Jones, Alexei Gilchrist, Prasanna Pakkiam, Arkady Fedorov, and Fabio Costa,

Quantum 9, 1952 (2025).

Current quantum technologies are at the cusp of becoming useful, but still face formidable obstacles such as noise. Noise severely limits the ability to scale quantum devices to the point th…

Category: Paper