Quantum

Paper

Faster Quantum Simulation Of Markovian Open Quantum Systems Via Randomisation

I.J. David, I. Sinayskiy, and F. Petruccione,

Quantum 10, 2204 (2026).

When simulating the dynamics of open quantum systems with quantum computers, it is essential to accurately approximate the system's behaviour while preserving the physicality of its evolutio…

Paper

Quantum Max d-Cut via qudit swap operators

Igor Klep, Tea Štrekelj, and Jurij Volčič,

Quantum 10, 2203 (2026).

Quantum Max Cut (QMC) problem for systems of qubits is an example of a 2-local Hamiltonian problem, and a prominent paradigm in computational complexity theory. This paper investigates the a…

Paper

Floquetifying stabiliser codes with distance-preserving rewrites

Benjamin Rodatz, Boldizsár Poór, and Aleks Kissinger,

Quantum 10, 2202 (2026).

Stabiliser codes with large weight measurements can be challenging to implement fault-tolerantly. To overcome this, we propose a Floquetification procedure which, given a stabiliser code, sy…

Paper

Reducing Spatial and Temporal Dimensionality in the Multidimensional Caldeira-Leggett Model

Hongfei Zhan, Ernest W.Z. Pan, and Zhenning Cai,

Quantum 10, 2201 (2026).

Focusing on the real-time dynamics of the reduced density matrix of the multidimensional Caldeira-Leggett model, several techniques are adopted in this paper to reduce the spatial and tempor…

Paper

Quantum Simulation of Nuclear Dynamics in First Quantization

Luca Spagnoli, Chiara Lissoni, and Alessandro Roggero,

Quantum 10, 2200 (2026).

The study of real time dynamics of nuclear systems is of great importance to provide theoretical predictions of cross sections relevant for both terrestrial experiments as well as applicatio…

Paper

Symmetry-enriched topological order in tensor networks: Defects, gauging and anyon condensation

Dominic J. Williamson, Nick Bultinck, and Frank Verstraete,

Quantum 10, 2199 (2026).

We study symmetry-enriched topological order in two-dimensional tensor network states by using graded matrix product operator algebras to represent symmetry-induced domain walls. A close con…

Paper

A brief history of quantum vs classical computational advantage

Ryan LaRose,

Quantum 10, 2198 (2026).

In this review article we summarize all experiments claiming quantum computational advantage to date. Our review highlights challenges, loopholes, and refutations appearing in subsequent wor…

Paper

Non-Gaussian Noise Magnetometry Using Local Spin Qubits

Jonathan B. Curtis, Amir Yacoby, and Eugene Demler,

Quantum 10, 2197 (2026).

Atomic scale qubits, as may be realized in nitrogen vacancy (NV) centers in diamond, offer the opportunity to study magnetic field noise with nanometer scale spatial resolution. Using these…

Paper

On the relation between perspective-neutral, algebraic, and effective quantum reference frames

Julian De Vuyst, Philipp A. Hoehn, and Artur Tsobanjan,

Quantum 10, 2196 (2026).

The framework of internal quantum reference frames (QRFs) constitutes a universal toolset for dealing with symmetries in quantum theory and has led to new revelations in quantum gravity, gau…

Paper

Simple logical quantum computation with concatenated symplectic double codes

Noah Berthusen and Elijah Durso-Sabina,

Quantum 10, 2195 (2026).

There have been significant recent advances in constructing theoretical and practical quantum error correcting codes that function well as quantum memories; however, performing fault-toleran…

Paper

Quantifying mixed-state entanglement via partial transpose and realignment moments

Poetri Sonya Tarabunga and Tobias Haug,

Quantum 10, 2194 (2026).

Entanglement plays a crucial role in quantum information science and many-body physics, yet quantifying it in mixed quantum many-body systems has remained a notoriously difficult problem. He…

Paper

Quantum phase estimation with optimal confidence interval using three control qubits

Kaur Kristjuhan and Dominic W. Berry,

Quantum 10, 2193 (2026).

Quantum phase estimation is an important routine in many quantum algorithms, particularly for estimating the ground state energy in quantum chemistry simulations. This estimation involves ap…

Paper

Measurement incompatibility in Bayesian multiparameter quantum estimation

Francesco Albarelli, Dominic Branford, and Jesús Rubio,

Quantum 10, 2192 (2026).

We present a comprehensive and pedagogical formulation of Bayesian multiparameter quantum estimation. Within this framework, we analyse the role of measurement incompatibility and establish…

Paper

Catalytic $z$-rotations in constant $T$-depth

Isaac H. Kim,

Quantum 10, 2191 (2026).

We show that the $T$-depth of any single-qubit $z$-rotation can be reduced to $3$ if a certain catalyst state is available. To achieve an $\epsilon$-approximation, it suffices to have a catalyst sta…

Paper

Robust topological quantum state transfer with long-range interactions in Rydberg arrays

Siri Raupach, Beatriz Olmos, and Mathias B. M. Svendsen,

Quantum 10, 2190 (2026).

We develop a theoretical framework for fast, robust and high-fidelity topological quantum state transfer in one-dimensional systems with long-range couplings, motivated by chains of Rydberg…

Paper

Efficient Graph State Generation in Linear Optics

Seungbeom Chin and William John Munro,

Quantum 10, 2189 (2026).

Graph states are central resources for quantum information processing, supporting applications in computation, communication, and error correction. In photonic systems, they are typically as…

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