Quantum

Paper

Unconditional Quantum Advantage for Sampling with Shallow Circuits

Adam Bene Watts and Natalie Parham,

Quantum 10, 2188 (2026).

Recent work by Bravyi, Gosset, and Koenig showed that there exists a search problem that a constant-depth quantum circuit can solve, but that any constant-depth classical circuit with bounde…

Paper

Quantum Resource Comparison for Two Leading Surface Code Lattice Surgery Approaches

Tyler LeBlond and Ryan S. Bennink,

Quantum 10, 2187 (2026).

Hamiltonian simulation is one of the most promising candidates for the demonstration of quantum advantage within the next ten years, and several studies have proposed end-to-end resource est…

Paper

Disorder-Induced Entanglement Phase Transitions in Non-Hermitian Systems with Skin Effects

Kai Li, Ze-Chuan Liu, and Yong Xu,

Quantum 10, 2186 (2026).

Non-Hermitian dynamics is ubiquitous in various physical systems. While recent study shows that such a dynamics leads to an area-law scaling of the entanglement entropy due to the non-Hermit…

Paper

Promise of Graph Sparsification and Decomposition for Noise Reduction in QAOA: Analysis for Trapped-Ion Compilations

Jai Moondra, Phillip C. Lotshaw, Greg Mohler, and Swati Gupta,

Quantum 10, 2185 (2026).

We develop new approximate compilation schemes that significantly reduce the expense of compiling the Quantum Approximate Optimization Algorithm (QAOA) for solving the Max-Cut problem. Our m…

Paper

Detection of a Rényi Index Dependent Transition in Entanglement Entropy Scaling

Hatem Barghathi and Adrian Del Maestro,

Quantum 10, 2184 (2026).

The scaling of entanglement with subsystem size encodes key information about phases and criticality, but the von Neumann entropy is costly to access in experiments and simulations, often re…

Paper

Entanglement growth in the dark intervals of a locally monitored free-fermion chain

Giovanni Di Fresco, Youenn Le Gal, Davide Valenti, Marco Schiró, and Angelo Carollo,

Quantum 10, 2183 (2026).

We consider a free fermionic chain with monitoring of the particle density on a single site of the chain and study the entanglement dynamics of quantum jump trajectories. We show that the en…

Paper

On the quantum computational complexity of classical linear dynamics with geometrically local interactions: Dequantization and universality

Kazuki Sakamoto and Keisuke Fujii,

Quantum 10, 2182 (2026).

The simulation of large-scale classical systems in exponentially small space on quantum computers has gained attention. The prior work demonstrated that a quantum algorithm offers an exponen…

Paper

Entanglement-assisted Quasi-cyclic Quantum Low-density Parity-check Codes over Qubits

Pavan Kumar, Abhi Kumar Sharma, Karthik Bharadwaj, and Shayan Srinivasa Garani,

Quantum 10, 2181 (2026).

We construct several families of entanglement-assisted quasi-cyclic quantum LDPC (EA-QC-QLDPC) codes via structured tilings of permutation matrices. The entanglement-unassisted portion of th…

Paper

Quantifiers and witnesses for the nonclassicality of measurements and of states

Yujie Zhang, Yìlè Yīng, and David Schmid,

Quantum 10, 2180 (2026).

In recent work [Phys. Rev. X 16, 021050], we proposed a unified notion of nonclassicality that applies to arbitrary processes in quantum theory, including individual quantum states, measurem…

Paper

Stabilizer Ranks, Barnes Wall Lattices and Magic Monotones

Amolak Ratan Kalra and Pulkit Sinha,

Quantum 10, 2179 (2026).

In 2024, Kliuchnikov and Schönnenbeck showed a connection between the Barnes Wall lattices, stabilizer states and Clifford operations. In this work, we study their results and relate them to…

Paper

Modulator-Assisted Zeno Control of Energy Transfer in Quantum Batteries

Songbo Xie, Manas Sajjan, Ashok Ajoy, and Sabre Kais,

Quantum 10, 2178 (2026).

Efficient operation of quantum batteries requires not only fast energy transfer but also the ability to halt the charging process to prevent reverse flow. Existing approaches typically rely…

Paper

atommovr: An open-source simulation framework for rearrangement in atomic arrays

Nikhil K Harle, Bo-Yu Chen, Bob Bao, and Hannes Bernien,

Quantum 10, 2177 (2026).

The task of atom rearrangement has emerged in the last decade as a fundamental building block in the development of neutral atom-based quantum processors. As such processors grow to thousand…

Paper

Dynamical codes for hardware with noisy readouts

Peter-Jan H.S. Derks, Alex Townsend-Teague, Jens Eisert, Markus S. Kesselring, Oscar Higgott, and Benjamin J. Brown,

Quantum 10, 2176 (2026).

Dynamical stabilizer codes may offer a practical route to large-scale quantum computation. Such codes are defined by a schedule of error-detecting measurements, which allows for flexibility…

Paper

A partition function framework for estimating logical error curves in stabilizer codes

Leon Wichette, Hans Hohenfeld, Elie Mounzer, and Linnea Grans-Samuelsson,

Quantum 10, 2175 (2026).

Based on the mapping between stabilizer quantum error correcting codes and disordered statistical mechanics models, we define a ratio of partition functions that measures the success probabi…

Paper

Quantum nonlocality without entanglement and state discrimination measures

Shayeef Murshid, Tathagata Gupta, Vincent Russo, and Somshubhro Bandyopadhyay,

Quantum 10, 2174 (2026).

An ensemble of product states is said to exhibit “quantum nonlocality without entanglement” if it cannot be optimally discriminated using local operations and classical communication (LOCC).…

Paper

Pilot-Wave Simulator: Exact Classical Sampling from Ideal and Noisy Quantum Circuits up to Hundreds of Qubits

Gleb Kalachev, Pavel Mosharev, Zuoheng Zou, Pavel Panteleev, and Man-Hong Yung,

Quantum 10, 2173 (2026).

Quantum circuit simulators running on classical computers offer a vital platform for designing, testing, and optimizing quantum algorithms, driving innovation despite limited access to real…

Category: Paper