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quant-ph2026

Optical Quantum Computing

Hamza Hasnaoui, Leonardo Limongi, Taira Giordani +5

Under the label of optical quantum computing, there are a variety of protocols and experiments that use the quantum properties of light to achieve a computational advantage over cl…

quant-ph2026

Fault-Tolerant Resource Comparison of Qudit and Qubit Encodings for Diagonal Quadratic Operators

Samuel Godwood, Doğa Murat Kürkçüoğlu, Gabriel N. Perdue +2

Finite local Hilbert-space truncations arise naturally in quantum simulations of lattice field theories and motivate qudit encodings, but their fault-tolerant advantage over qubit…

quant-ph2025

Deep Thermalization and Measurements of Quantum Resources

Naga Dileep Varikuti, Soumik Bandyopadhyay, Philipp Hauke

Quantum resource theories provide a unified framework for characterizing useful quantum phenomena subject to physical constraints but are notoriously hard to assess in experimental…

quant-ph2025★ 2 cited

Stimulated Hawking effect and quasinormal mode resonance in a polariton simulator of field theory on curved spacetime

Mattheus Burkhard, Malte Kroj, Kévin Falque +3

The Hawking effect amplifies fluctuations in the vicinity of horizons, both in black holes and in analogue platforms. Here, we consider a polariton simulator and numerically examin…

quant-ph2025

From single-particle to many-body chaos in Yukawa--SYK: theory and a cavity-QED proposal

David Pascual Solis, Alex Windey, Soumik Bandyopadhyay +2

Understanding how quantum systems transition from integrable to fully chaotic behavior remains a central open problem in physics. The Sachdev--Ye--Kitaev (SYK) model provides a par…

quant-ph2025

Probing non-equilibrium physics through the two-body Bell correlator

Abhishek Muhuri, Tanoy Kanti Konar, Leela Ganesh Chandra Lakkaraju +1

Identifying equilibrium criticalities and phases from the dynamics of a system, known as a dynamical quantum phase transition (DQPT), is a challenging task when relying solely on l…

quant-ph2025

Neutrino thermalization via randomization on a quantum processor

Oriel Kiss, Ivano Tavernelli, Francesco Tacchino +2

The dynamical evolution of neutrino flavor in supernovae can be modeled by an all-to-all spin Hamiltonian with random couplings. Simulating such two-local Hamiltonian dynamics rema…

quant-ph2025

Practical Noise Mitigation for Quantum Annealing via Dynamical Decoupling: Toward Industry-Relevant Optimization using Trapped Ions

Sebastian Nagies, Chiara Capecci, Marcel Seelbach Benkner +6

Quantum annealing is a framework for solving combinatorial optimization problems. While it offers a promising path towards a practical application of quantum hardware, its performa…

quant-ph2025

Quantum reservoir computing for predicting and characterizing chaotic maps

Qingyu Li, Chiranjib Mukhopadhyay, Ludovico Minati +1

Quantum reservoir computing has emerged as a promising paradigm for harnessing quantum systems to process temporal data efficiently by bypassing the costly training of gradient-bas…

quant-ph2025

Dissipative quantum North-East-Center model: steady-state phase diagram, universality and nonergodic dynamics

Pietro Brighi, Alberto Biella

In this work we study the dissipative quantum North-East-Center (NEC) model: a two-dimensional spin-1/2 lattice subject to chiral, kinetically constrained dissipation and coherent…

quant-ph2025

Quantum Simulation of Nuclear Dynamics in First Quantization

Luca Spagnoli, Chiara Lissoni, Alessandro Roggero

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…

quant-ph2025

A weighted quantum ensemble of homogeneous quantum classifiers

Emiliano Tolotti, Enrico Blanzieri, Davide Pastorello

Ensemble methods in machine learning aim to improve prediction accuracy by combining multiple models. This is achieved by ensuring diversity among predictors to capture different d…

quant-ph2025★ 7 cited

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

Naga Dileep Varikuti, Soumik Bandyopadhyay, Philipp Hauke

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

quant-ph2025

Critical quantum metrology using non-Hermitian spin model with RT-symmetry

Keshav Das Agarwal, Tanoy Kanti Konar, Leela Ganesh Chandra Lakkaraju +1

The non-Hermitian transverse model with Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interaction having -symmetry, referred to as model, possesses both…

quant-ph2025

Theory of the correlated quantum Zeno effect in a monitored qubit dimer

Severino Zeni, Gobinda Chakraborty, Alessandro Romito +1

We theoretically investigate the stochastic dynamics of two qubits subject to one- and two-site correlated continuous weak measurements. When measurements dominate over the local u…

quant-ph2025★ 8 cited

Collective Neutrino Oscillations in Three Flavors on Qubit and Qutrit Processors

Luca Spagnoli, Noah Goss, Alessandro Roggero +9

Collective neutrino flavor oscillations are of primary importance in understanding the dynamic evolution of core-collapse supernovae and subsequent terrestrial detection, but also…

quant-ph2025

Inference of response functions with the help of machine learning algorithms

Doga Murat Kurkcuoglu, Alessandro Roggero, Gabriel N. Perdue +1

Response functions are a key quantity to describe the near-equilibrium dynamics of strongly-interacting many-body systems. Recent techniques that attempt to overcome the challenges…

quant-ph2025

Expediting quantum state transfer through the long-range extended XY model

Sejal Ahuja, Tanoy Kanti Konar, Leela Ganesh Chandra Lakkaraju +1

Going beyond short-range interactions, we explore the role of long-range interactions in the extended XY model for transferring quantum states through evolution. In particular, emp…

quant-ph2024★ 3 cited

Symmetry verification for noisy quantum simulations of non-Abelian lattice gauge theories

Edoardo Ballini, Julius Mildenberger, Matteo M. Wauters +1

Non-Abelian gauge theories underlie our understanding of fundamental forces of modern physics. Simulating them on quantum hardware is an outstanding challenge in the rapidly evolvi…

quant-ph2024★ 3 cited

Boosting quantum annealing performance through direct polynomial unconstrained binary optimization

Sebastian Nagies, Kevin T. Geier, Javed Akram +3

Quantum annealing aims at solving optimization problems of practical relevance using quantum-computing hardware. Problems of interest are typically formulated in terms of quadratic…

quant-ph2024★ 7 cited

Genuine Multipartite Entanglement in Quantum Optimization

Gopal Chandra Santra, Sudipto Singha Roy, Daniel J. Egger +1

The ability to generate bipartite entanglement in quantum computing technologies is widely regarded as pivotal. However, the role of genuinely multipartite entanglement is much les…

quant-ph2024★ 9 cited

Neural Quantum Propagators for Driven-Dissipative Quantum Dynamics

Jiaji Zhang, Carlos L. Benavides-Riveros, Lipeng Chen

Describing the dynamics of strong-laser driven open quantum systems is a very challenging task that requires the solution of highly involved equations of motion. While machine lear…

quant-ph2024★ 1 cited

Symmetry-enhanced Counterdiabatic Quantum Algorithm for Qudits

Alberto Bottarelli, Mikel Garcia de Andoin, Pranav Chandarana +4

Qubit-based variational quantum algorithms have undergone rapid development in recent years but still face several challenges. In this context, we propose a symmetry-enhanced digit…

quant-ph2024★ 3 cited

Inequality constraints in variational quantum circuits with qudits

Alberto Bottarelli, Sebastian Schmitt, Philipp Hauke

Quantum optimization is emerging as a prominent candidate for exploiting the capabilities of near-term quantum devices. Many application-relevant optimization tasks require the inc…