Quantum

Quantum has published 2187 Papers in 10 Volumes, as well as 87 Views in Quantum Views.

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…

Paper

Hoare meets Heisenberg: A Lightweight Logic for Quantum Programs

Aarthi Sundaram, Robert Rand, Kartik Singhal, Youngchan Cho, and Brad Lackey,

Quantum 10, 2172 (2026).

We show that Gottesman's (1998) semantics for Clifford circuits based on the Heisenberg representation gives rise to a lightweight Hoare-like logic for efficiently characterizing a common su…

Paper

A complete theory of the Clifford commutant

Lennart Bittel, Jens Eisert, Lorenzo Leone, Antonio A. Mele, and Salvatore F.E. Oliviero,

Quantum 10, 2171 (2026).

The Clifford group plays a central role in quantum information science. It is the building block for many error-correcting schemes and matches the first three moments of the Haar measure ove…

Paper

Controller-decoder system requirements derived by implementing Shor’s algorithm with surface code

Yaniv Kurman, Lior Ella, Nir Halay, Oded Wertheim, and Yonatan Cohen,

Quantum 10, 2170 (2026).

Quantum Error Correction (QEC) is regarded as the most promising path to quantum advantage. The success of QEC relies on achieving quantum gate fidelities below the error threshold of the QE…

Paper

Non-commutative optimization problems with differential constraints

Mateus Araújo, Andrew J. P. Garner, and Miguel Navascues,

Quantum 10, 2169 (2026).

Non-commutative polynomial optimization (NPO) problems seek to minimize the state average of a polynomial of some operator variables, subject to polynomial constraints, over all states and o…

Paper

Quantum state preparation with optimal T-count

David Gosset, Robin Kothari, and Kewen Wu,

Quantum 10, 2168 (2026).

How many $T$ gates are needed to approximate an arbitrary $n$-qubit quantum state to within error $\varepsilon$? Improving prior work of Low, Kliuchnikov, and Schaeffer, we show that the optimal a…

Paper

Optimal schedule of multi-channel quantum Zeno dragging with application to solving the k-SAT problem

Yipei Zhang, Alain Sarlette, Philippe Lewalle, Tathagata Karmakar, Thilo Scharnhorst, and K. Birgitta Whaley,

Quantum 10, 2167 (2026).

Quantum Zeno dragging enables the preparation of common eigenstates of a set of observables by frequent measurement and adiabatic-like modulation of the measurement basis. In this work, we p…

Paper

Resource quantification for programming low-depth quantum circuits

Entong He and Yuxiang Yang,

Quantum 10, 2166 (2026).

Noisy intermediate-scale quantum (NISQ) devices pave the way for implementing quantum algorithms that offer quantum advantages over their classical counterparts. Due to the intrinsic noise a…

Paper

Complexity of graph-state preparation by Clifford circuits

Soh Kumabe, Ryuhei Mori, and Yusei Yoshimura,

Quantum 10, 2165 (2026).

In this work, we study the complexity of graph-state preparation in a general model of quantum algorithms that allows measurements in the computational basis, single-qubit Clifford operation…

Paper

Exact Quantum Many-Body Scars in 2D Quantum Gauge Models

Yuan Miao, Linhao Li, Hosho Katsura, and Masahito Yamazaki,

Quantum 10, 2164 (2026).

Quantum many-body scars (QMBS) serve as important examples of ergodicity-breaking phenomena in quantum many-body systems. Despite recent extensive studies, exact QMBS are rare in dimensions…

Paper

Shadow Pauli Flow: Characterising Determinism in MBQCs involving Pauli Measurements

Mehdi Mhalla, Simon Perdrix, and Luc Sanselme,

Quantum 10, 2163 (2026).

We introduce a new characterisation of determinism in Measurement-Based Quantum Computing (MBQC). The one-way model consists in performing local measurements over a large entangled state rep…

Paper

Fast quantum measurement tomography with optimal error bounds

Leonardo Zambrano, Sergi Ramos-Calderer, and Richard Kueng,

Quantum 10, 2162 (2026).

We present a two-step protocol for quantum measurement tomography that is light on classical co-processing cost and still achieves optimal sample complexity. Given measurement data from a kn…

Paper

MPC in the Quantum Head (or: Superposition-Secure (Quantum) Zero-Knowledge)

Andrea Coladangelo, Ruta Jawale, Dakshita Khurana, Giulio Malavolta, and Hendrik Waldner,

Quantum 10, 2161 (2026).

The MPC-in-the-head technique (Ishai et al., STOC 2007) is a celebrated method to build zero-knowledge protocols with desirable theoretical properties and high practical efficiency. This tec…

Paper

Geometric speed limit of state preparation and curved control spaces

Maximilian Goll and Robert H. Jonsson,

Quantum 10, 2160 (2026).

The preparation of quantum many-body systems faces the difficulty that in a realistic scenario only few control parameters of the system may be accessible. In this context, an interesting co…

Paper

From Superradiance to Superabsorption: An Exact Treatment of Non-Markovian Cooperative Radiation

Ignacio González and Ángel Rivas,

Quantum 10, 2159 (2026).

We investigate the emergence of cooperative radiation phenomena in ensembles of two-level atoms coupled to a lossy resonant cavity beyond the Markovian and mean-field approximations. By deri…

Paper

Near-Optimal Parameter Tuning of Level-1 QAOA for Ising Models

V Vijendran, Dax Enshan Koh, Eunok Bae, Hyukjoon Kwon, Ping Koy Lam, and Syed M Assad,

Quantum 10, 2158 (2026).

The Quantum Approximate Optimisation Algorithm (QAOA) tackles combinatorial optimisation problems by encoding their solutions into the ground state of an Ising Hamiltonian prepared by a $p$-le…