Quantum

Paper

Light-matter correlations in Quantum Floquet engineering of cavity quantum materials

Beatriz Pérez-González, Gloria Platero, and Álvaro Gomez-León,

Quantum 9, 1633 (2025).

Quantum Floquet engineering (QFE) seeks to generalize the control of quantum systems with classical external fields, widely known as Semi-Classical Floquet engineering (SCFE), to quantum fie…

Paper

Minimising surface-code failures using a color-code decoder

Asmae Benhemou, Kaavya Sahay, Lingling Lao, and Benjamin J. Brown,

Quantum 9, 1632 (2025).

The development of practical, high-performance decoding algorithms reduces the resource cost of fault-tolerant quantum computing. Here we propose a decoder for the surface code that finds lo…

Paper

Convergence and Quantum Advantage of Trotterized MERA for Strongly-Correlated Systems

Qiang Miao and Thomas Barthel,

Quantum 9, 1631 (2025).

Paper

Refining resource estimation for the quantum computation of vibrational molecular spectra through Trotter error analysis

Dimitar Trenev, Pauline J Ollitrault, Stuart M. Harwood, Tanvi P. Gujarati, Sumathy Raman, Antonio Mezzacapo, and Sarah Mostame,

Quantum 9, 1630 (2025).

Accurate simulations of vibrational molecular spectra are expensive on conventional computers. Compared to the electronic structure problem, the vibrational structure problem with quantum co…

Paper

Superpositions of thermalisations in relativistic quantum field theory

Joshua Foo and Magdalena Zych,

Quantum 9, 1629 (2025).

Recent results in relativistic quantum information and quantum thermodynamics have independently shown that in the quantum regime, a system may fail to thermalise when subject to quantum-con…

Paper

A de Finetti theorem for quantum causal structures

Fabio Costa, Jonathan Barrett, and Sally Shrapnel,

Quantum 9, 1628 (2025).

What does it mean for a causal structure to be `unknown'? Can we even talk about `repetitions' of an experiment without prior knowledge of causal relations? And under what conditions can we…

Paper

Quantum complexity phase transitions in monitored random circuits

Ryotaro Suzuki, Jonas Haferkamp, Jens Eisert, and Philippe Faist,

Quantum 9, 1627 (2025).

Recently, the dynamics of quantum systems that involve both unitary evolution and quantum measurements have attracted attention due to the exotic phenomenon of measurement-induced phase tran…

Paper

Efficient Hamiltonian encoding algorithms for extracting quantum control mechanism as interfering pathway amplitudes in the Dyson series

Erez Abrams, Michael Kasprzak, Gaurav Bhole, Tak-San Ho, and Herschel Rabitz,

Quantum 9, 1626 (2025).

Hamiltonian encoding is a methodology for revealing the mechanism behind the dynamics governing controlled quantum systems. In this paper, following Mitra and Rabitz [9], we define mechanism…

Paper

Multipartite entanglement distribution in a topological photonic network

Juan Zurita, Andrés Agustí Casado, Charles E. Creffield, and Gloria Platero,

Quantum 9, 1625 (2025).

In the ongoing effort towards a scalable quantum computer, multiple technologies have been proposed. Some of them exploit topological materials to process quantum information. In this work,…

Paper

Enhancing Scalability of Quantum Eigenvalue Transformation of Unitary Matrices for Ground State Preparation through Adaptive Finer Filtering

Erenay Karacan, Yanbin Chen, and Christian B. Mendl,

Quantum 9, 1624 (2025).

Hamiltonian simulation is a domain where quantum computers have the potential to outperform their classical counterparts. One of the main challenges of such quantum algorithms is increasing…

Paper

Comparative study of quantum error correction strategies for the heavy-hexagonal lattice

César Benito, Esperanza López, Borja Peropadre, and Alejandro Bermudez,

Quantum 9, 1623 (2025).

Topological quantum error correction is a milestone in the scaling roadmap of quantum computers, which targets circuits with trillions of gates that would allow running quantum algorithms fo…

Paper

Tight bounds for antidistinguishability and circulant sets of pure quantum states

Nathaniel Johnston, Vincent Russo, and Jamie Sikora,

Quantum 9, 1622 (2025).

A set of pure quantum states is said to be antidistinguishable if upon sampling one at random, there exists a measurement to perfectly determine some state that was not sampled. We show that…

Paper

Theory of Multimode Squeezed Light Generation in Lossy Media

Denis A. Kopylov, Torsten Meier, and Polina R. Sharapova,

Quantum 9, 1621 (2025).

A unified theoretical approach to describe the properties of multimode squeezed light generated in a lossy medium is presented. This approach is valid for Markovian environments and includes…

Paper

Low-Rank Variational Quantum Algorithm for the Dynamics of Open Quantum Systems

Sara Santos, Xinyu Song, and Vincenzo Savona,

Quantum 9, 1620 (2025).

The simulation of many-body open quantum systems is key to solving numerous outstanding problems in physics, chemistry, material science, and in the development of quantum technologies. Near…

Paper

Metrological Advantages in Seeded and Lossy Nonlinear Interferometers

Jasper Kranias, Guillaume Thekkadath, Khabat Heshami, and Aaron Z. Goldberg,

Quantum 9, 1619 (2025).

The quantum Fisher information (QFI) bounds the sensitivity of a quantum measurement, heralding the conditions for quantum advantages when compared with classical strategies. Here, we calcul…

Paper

Distance-preserving stabilizer measurements in hypergraph product codes

Argyris Giannisis Manes and Jahan Claes,

Quantum 9, 1618 (2025).

Unlike the surface code, quantum low-density parity-check (QLDPC) codes can have a finite encoding rate, potentially lowering the error correction overhead. However, finite-rate QLDPC codes…

Category: Paper