Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Solving the Decision Principal Ideal Problem with Pre-processing
Jincheng Zhuang, Qi Cheng·Jun 11, 2025
The principal ideal problem constitutes a fundamental problem in algebraic number theory and has attracted significant attention due to its applications in ideal lattice based cryptosystems. Efficient quantum algorithm has been found to address this ...
Symmetric quantum states: a review of recent progress
Carlo Marconi, Guillem Müller-Rigat, Jordi Romero-Pallejà +2 more·Jun 11, 2025
Symmetric quantum states are fascinating objects. They correspond to multipartite systems that remain invariant under particle permutations. This symmetry is reflected in their compact mathematical characterisation but also in their unique physical p...
Compact and programmable large-scale optical processor in free space
Maria Gorizia Ammendola, Nazanin Dehghan, Lukas Scarfe +4 more·Jun 11, 2025
Photonic circuits are central to classical and quantum information processing. While integrated technologies dominate, free-space architectures are emerging as attractive alternatives, offering broad bandwidth and direct manipulation of optical modes...
High-Performance Heterodyne Receiver for Quantum Information Processing in a Laser Written Integrated Photonic Platform
Andrea Peri, Giulio Gualandi, Tommaso Bertapelle +8 more·Jun 10, 2025
Continuous-Variable Quantum Key Distribution (CV-QKD) and Quantum Random Number Generation (CV-QRNG) are critical technologies for secure communication and high-speed randomness generation, exploiting shot-noise-limited coherent detection for their o...
Quantum Simulation of Noisy Quantum Networks
Ferran Riera-Sàbat, Jorge Miguel-Ramiro, W. Dur·Jun 10, 2025
Complex quantum networks are not only hard to establish, but also difficult to simulate due to the exponentially growing state space and noise-induced imperfections. In this work, we propose an alternative approach that leverage quantum computers and...
Genetic Transformer-Assisted Quantum Neural Networks for Optimal Circuit Design
Haiyan Wang·Jun 10, 2025
We introduce Genetic Transformer Assisted Quantum Neural Networks (GTQNNs), a hybrid learning framework that combines a transformer encoder with a shallow variational quantum circuit and automatically fine tunes the circuit via the NSGA-II multi obje...
Orbit dimensions in linear and Gaussian quantum optics
Eliott Z. Mamon·Jun 9, 2025
We study the dimension of the manifold of quantum states (called orbit) that a given quantum state of light can reach under the dynamics of linear or Gaussian quantum optics. That is, we investigate how many directions in the Hilbert space a given st...
High resolution quantum enhanced phase imaging of cells
Alberto Paniate, Giuseppe Ortolano, Sarika Soman +2 more·Jun 9, 2025
Recovering both amplitude and phase information from a system is a fundamental goal of optical imaging. At the same time, it is crucial to operate at low photon doses to avoid altering the sample, particularly in biological applications. Quantum imag...
Error-mitigated quantum metrology via enhanced virtual purification
Xiaodie Lin, Haidong Yuan·Jun 9, 2025
Quantum metrology stands as a leading application of quantum science and technology, yet noise often constrains its precision and sensitivity. In near-term quantum metrology, existing protocols largely depend on virtual state purification, but signif...
PoSyn: Secure Power Side-Channel Aware Synthesis
Amisha Srivastava, S. S. Miftah, Hyunmin Kim +2 more·Jun 9, 2025
Power Side-Channel (PSC) attacks exploit power consumption patterns to extract sensitive information, posing risks to cryptographic operations crucial for secure systems. Traditional countermeasures, such as masking, face challenges including complex...
Schmidt-number robustness as a unified quantifier of high dimensional entanglement in Buscemi nonlocality
Xian Shi·Jun 8, 2025
High-dimensional entanglement, captured by the Schmidt number, underpins advantages in quantum information tasks, yet a unified resource-theoretic description across different Buscemi-type operational objects has been missing. Here we develop a conve...
Learning Variational Quantum Circuit Parameters with Classical Artificial Intelligence for Quantum Phase Transition Detection
Xin Li, Zhang-Qi Yin·Jun 7, 2025
Learning many-body quantum states and quantum phase transitions remains a major challenge in quantum many-body physics. Classical machine learning methods offer certain advantages in addressing these difficulties. In this work, we propose a novel fra...
Finite-temperature entanglement and coherence in asymmetric bosonic Josephson junctions
Cesare Vianello, Matteo Ferraretto, Luca Salasnich·Jun 6, 2025
We investigate the finite-temperature properties of a bosonic Josephson junction composed of N interacting atoms confined by a quasi-one-dimensional asymmetric double-well potential, modeled by the two-site Bose-Hubbard Hamiltonian. We compute numeri...
Transient and steady-state chaos in dissipative quantum systems
Debabrata Mondal, Lea F. Santos, S. Sinha·Jun 5, 2025
Dissipative quantum chaos plays a central role in the characterization and control of information scrambling, non-unitary evolution, and thermalization, but it still lacks a precise definition. The Grobe-Haake-Sommers conjecture, which links Ginibre ...
Erasure cost of a quantum process: A thermodynamic meaning of the dynamical min-entropy
Himanshu Badhani, Dhanuja GS, Swati Choudhary +2 more·Jun 5, 2025
The erasure of information is fundamentally an irreversible logical operation, carrying profound consequences for the energetics of computation and information processing. We investigate the thermodynamic costs associated with erasing (and preparing)...
Tunable spin-phonon polarons in a chiral molecular qubit framework
Aimei Zhou, Ruihao Bi, Zhenghan Zhang +22 more·Jun 5, 2025
Chiral structures that produce asymmetric spin-phonon coupling can theoretically generate spin-phonon polarons -- quasiparticles exhibiting non-degenerate spin states with phonon displacements. These quasiparticles are speculated to be the origin of ...
Flagged Extensions and Numerical Simulations for Quantum Channel Capacity: Bridging Theory and Computation
Vahid Nourozi·Jun 3, 2025
I will investigate the capacities of noisy quantum channels through a combined analytical and numerical approach. First, I introduce novel flagged extension techniques that embed a channel into a higher-dimensional space, enabling single-letter upper...
Ultracoherent superconducting cavity-based multiqudit platform with error-resilient control
Taeyoon Kim, Tanay Roy, Xinyuan You +26 more·Jun 3, 2025
Superconducting radio-frequency (SRF) cavities offer a promising platform for quantum computing due to their long coherence times, yet integrating nonlinear elements like transmons for control often introduces additional loss. We report a multimode q...
Adversarial quantum channel discrimination
Kun Fang, Hamza Fawzi, Omar Fawzi·Jun 3, 2025
We introduce a new framework for quantum channel discrimination in an adversarial setting, where the tester plays against an adversary. We show that in asymmetric hypothesis testing, the optimal type-II error exponent is precisely characterized by a ...
Bayesian and Markovian classical feedforward for discriminating qubit channels
Milajiguli Rexiti, Stefano Mancini·Jun 2, 2025
We address the issue of multishot discrimination between two qubit channels by invoking a simple adaptive protocol that employs Helstrom measurement at each step and classical information feedforward, beside separable inputs. We contrast the performa...