Quantum

Paper

On computational complexity and average-case hardness of shallow-depth boson sampling

Byeongseon Go, Changhun Oh, and Hyunseok Jeong,

Quantum 10, 2026 (2026).

Boson Sampling, a computational task believed to be classically hard to simulate, is expected to hold promise for demonstrating quantum computational advantage using near-term quantum device…

Paper

An adversary bound for quantum signal processing

Lorenzo Laneve,

Quantum 10, 2025 (2026).

Quantum signal processing (QSP) and quantum singular value transformation (QSVT), have emerged as unifying frameworks in the context of quantum algorithm design. These techniques allow to ca…

Paper

Explicit decoders using fixed-point amplitude amplification based on QSVT

Takeru Utsumi and Yoshifumi Nakata,

Quantum 10, 2024 (2026).

Reliably transmitting quantum information via a noisy quantum channel is a central challenge in quantum information science. While constructing a decoder is crucial to this goal, little was…

Paper

Qudit low-density parity-check codes

Daniel J. Spencer, Andrew Tanggara, Tobias Haug, Derek Khu, and Kishor Bharti,

Quantum 10, 2023 (2026).

Qudits offer significant advantages over qubit-based architectures, including more efficient gate compilation, reduced resource requirements, improved error-correction primitives, and enhanc…

Paper

Successive randomized compression: A randomized algorithm for the compressed MPO-MPS product

Chris Camaño, Ethan N. Epperly, and Joel A. Tropp,

Quantum 10, 2022 (2026).

Tensor networks like matrix product states (MPSs) and matrix product operators (MPOs) are powerful tools for representing exponentially large states and operators, with applications in quant…

Paper

Automated generation of photonic circuits for Bell tests with homodyne measurements

Corentin Lanore, Federico Grasselli, Xavier Valcarce, Jean-Daniel Bancal, and Nicolas Sangouard,

Quantum 10, 2021 (2026).

Nonlocal quantum realizations, certified by the violation of a Bell inequality, are core resources for device-independent quantum information processing. Although proof-of-principle experime…

Paper

No-go theorem for heralded exact one-way key distillation

Vishal Singh and Mark M. Wilde,

Quantum 10, 2020 (2026).

The heralded exact one-way distillable secret key is equal to the largest expected rate at which perfect secret key bits can be probabilistically distilled from a bipartite state by means of…

Paper

More entropy from shorter experiments using polytope approximations to the quantum set

Hyejung H. Jee, Florian J. Curchod, and Mafalda L. Almeida,

Quantum 10, 2019 (2026).

We introduce a systematic method for constructing polytope approximations to the quantum set in a variety of device-independent quantum random number generation (DI-QRNG) protocols. Our appr…

Paper

Quasi-Adiabatic Processing of Thermal States

Reinis Irmejs, Mari Carmen Bañuls, and J. Ignacio Cirac,

Quantum 10, 2018 (2026).

We investigate the performance of an adiabatic evolution protocol when initialized from a Gibbs state at finite temperature. Specifically, we identify the diagonality of the final state in t…

Paper

Impact of Clifford operations on non-stabilizing power and quantum chaos

Naga Dileep Varikuti, Soumik Bandyopadhyay, and Philipp Hauke,

Quantum 10, 2017 (2026).

Non-stabilizerness, alongside entanglement, is a crucial ingredient for fault-tolerant quantum computation and achieving a genuine quantum advantage. Despite recent progress, a complete unde…

Paper

Near-optimal coherent state discrimination via continuously labelled non-Gaussian measurements

James Moran, Spiros Kechrimparis, and Hyukjoon Kwon,

Quantum 10, 2016 (2026).

Quantum state discrimination plays a central role in quantum information and communication. For the discrimination of optical quantum states, the two most widely adopted measurement techniqu…

Paper

Efficient Computation of Generalized Noncontextual Polytopes and Quantum violation of their Facet Inequalities

Soumyabrata Hazra, Debashis Saha, Anubhav Chaturvedi, Subhankar Bera, and A. S. Majumdar,

Quantum 10, 2015 (2026).

Finding a set of empirical criteria fulfilled by any theory satisfying the generalized notion of noncontextuality is a challenging task of both operational and foundational importance. This…

Paper

Utility-Scale Quantum State Preparation: Classical Training using Pauli Path Simulation

Cheng-Ju Lin, Hrant Gharibyan, and Vincent P. Su,

Quantum 10, 2014 (2026).

We use Pauli Path simulation to variationally obtain parametrized circuits for preparing ground states of various quantum many-body Hamiltonians. These include the quantum Ising model in one…

Paper

Quantum Supermaps are Characterized by Locality

Matt Wilson, Giulio Chiribella, and Aleks Kissinger,

Quantum 10, 2013 (2026).

We provide a new characterisation of quantum supermaps in terms of an axiom that refers only to sequential and parallel composition. Consequently, we generalize quantum supermaps to arbitrar…

Paper

Bridging Classical and Quantum Information Scrambling with the Operator Entanglement Spectrum

Ben T. McDonough, Claudio Chamon, Justin H. Wilson, and Thomas Iadecola,

Quantum 10, 2012 (2026).

Universal features of chaotic quantum dynamics underlie our understanding of thermalization in closed quantum systems and the complexity of quantum computations. Reversible automaton circuit…

Paper

Universal and Efficient Quantum State Verification via Schmidt Decomposition and Mutually Unbiased Bases

Yunting Li and Huangjun Zhu,

Quantum 10, 2011 (2026).

Efficient verification of multipartite quantum states is crucial to many applications in quantum information processing. By virtue of Schmidt decomposition and mutually unbiased bases, here…

Category: Paper