Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Computing in the Computational Landscape of Power Electronics: Vision and Reality
N. Paterakis, P. Karamanakos, Corey O’Meara +1 more·Jul 3, 2025
Quantum computing is rapidly emerging as a promising technology for solving complex optimization problems that arise in various engineering fields. Therefore, it holds significant promise to transform the computational foundations of power electronic...
An Ultra-Cold Mechanical Quantum Sensor for Tests of New Physics
Andraz Omahen, Simon Storz, Marius Bild +3 more·Jul 3, 2025
Initialization of mechanical modes in the quantum ground state is crucial for their use in quantum information and quantum sensing protocols. In quantum processors, impurity of the modes'initial state affects the infidelity of subsequent quantum algo...
Efficient Characterization of Coherent and Correlated Low-Degree Noise in Layers of Gates
Marianna Crupi, J. Ignacio Cirac, Flavio Baccari·Jul 2, 2025
We present a quantum process-tomography protocol based on a low-degree ansatz for the quantum channel, i.e. when it can be expressed as a fixed-degree polynomial in terms of Pauli operators. We demonstrate how to perform tomography of such channels w...
Improving GANs by leveraging the quantum noise from real hardware
Hongni Jin, Kenneth M. Merz·Jul 2, 2025
We propose a novel approach to generative adversarial networks (GANs) in which the standard i.i.d. Gaussian latent prior is replaced or hybridized with a quantum-correlated prior derived from measurements of a 16-qubit entangling circuit. Each latent...
Bias-tailored single-shot quantum LDPC codes
Shixin Wu, Todd A. Brun, Daniel A. Lidar·Jul 2, 2025
Quantum hardware rarely suffers equal amounts of bit-flip ($X$) and phase-flip ($Z$) errors; one type is often much more common than the other. A code that is ``bias-tailored''can exploit this imbalance, lowering the fault-tolerance overhead. A compl...
Circuit compression for 2D quantum dynamics
Matteo D'Anna, Yuxuan Zhang, R. Wiersema +2 more·Jul 2, 2025
The study of out-of-equilibrium quantum many-body dynamics remains one of the most exciting research frontiers of physics, standing at the crossroads of our understanding of complex quantum phenomena and the realization of quantum advantage. Quantum ...
Error correction, authentication, and false acceptance, probabilities for communication over noisy quantum channels: converse upper bounds on the bit transmission rate
Pete Rigas·Jul 2, 2025
We obtain strict upper bounds on the bit transmission rate for communication of Classical bit codewords over Quantum channels. Albeit previous arguments in arXiv: 1804.01797 which have demonstrated that lower bounds can be shown to hold for the bit t...
Revisiting Noise-adaptive Transpilation in Quantum Computing: How Much Impact Does it Have?
Yuqian Huo, Jinbiao Wei, Christopher Kverne +3 more·Jul 1, 2025
Transpilation, particularly noise-aware optimization, is widely regarded as essential for maximizing the performance of quantum circuits on superconducting quantum computers. The common wisdom is that each circuit should be transpiled using up-to-dat...
Quantum state transfer and periodicity in discrete-time quantum walks under non--Markovian dephasing noise
Monika Rani, Supriyo Dutta, Subhashish Banerjee·Jun 30, 2025
In quantum communication, quantum state transfer from one location to another in a quantum network plays a prominent role, where the impact of noise could be crucial. The idea of state transfer can be fruitfully associated with quantum walk on graphs...
Finite Gaussian assistance protocols and a conic metric for extremizing spacelike vacuum entanglement
Boyu Gao, Natalie Klco·Jun 30, 2025
In a pure Gaussian tripartition, a range of entanglement between two parties ($AB$) can be purified through classical communication of Gaussian measurements performed within the third ($C$). To begin, this work introduces a direct method to calculate...
Topologically noise robust network steering without inputs
Dhruv Baheti, Shubhayan Sarkar·Jun 30, 2025
Quantum networks with independent sources allow observing quantum nonlocality or steering with just a single measurement per node of the network, or without any inputs. Inspired by the recently introduced notion of swap-steering, we consider here the...
Fault-tolerant dynamically-decoupled hyper-Ramsey spectroscopy of ultra-narrow clock transitions
T. Zanon-Willette, B. Ilikj, D. Wilkowski +2 more·Jun 29, 2025
Hyper-Ramsey protocols effectively reduce AC-Stark shifts in probing ultra-narrow optical clock transitions but they remain sensitive to laser intensity noise, decoherence, frequency drifts, and low-frequency perturbations. We address these limitatio...
QTurbo: A Robust and Efficient Compiler for Analog Quantum Simulation
Junyu Zhou, Yuhao Liu, Shize Che +5 more·Jun 28, 2025
Analog quantum simulation leverages native hardware dynamics to emulate complex quantum systems with great efficiency by bypassing the quantum circuit abstraction. However, conventional compilation methods for analog simulators are typically labor-in...
A Quantum Framework for Protein Binding-Site Structure Prediction on Utility-Level Quantum Processors
Yuqi Zhang, Yuxin Yang, William Martin +8 more·Jun 27, 2025
Accurate prediction of protein active-site structures remains a central challenge in structural biology, particularly for short and flexible peptide fragments where conventional and simulation-based methods often fail. Here, we present a quantum comp...
Decoherence of Majorana qubits by 1/f noise
Abhijeet Alase, Marcus C. Goffage, Maja C. Cassidy +1 more·Jun 27, 2025
Qubits based on Majorana zero modes (MZMs) in superconductor-semiconductor nanowires have attracted intense interest due to claims that their error rates are suppressed exponentially with increasing nanowire length or decreasing temperature. However,...
Maximal intrinsic randomness of noisy quantum measurements
Fionnuala Curran, Morteza Moradi, Gabriel Senno +2 more·Jun 27, 2025
Quantum physics exhibits an intrinsic and private form of randomness with no classical counterpart. Any setup for quantum randomness generation involves measurements acting on quantum states. In this work, we consider the following question: Given a ...
Optimizing continuous-time quantum error correction for arbitrary noise
Anirudh Lanka, Shashank Hegde, Todd A. Brun·Jun 26, 2025
We present a protocol using machine learning (ML) to simultaneously optimize the quantum error-correcting code space and the corresponding recovery map in the framework of continuous-time quantum error correction. Given a Hilbert space and a noise pr...
Hardware-Aware Quantum Kernel Design Based on Graph Neural Networks
Fanxu Meng, Yuxiang Liu, Lu Wang +3 more·Jun 26, 2025
Quantum kernels hold significant promise for achieving computational advantages in quantum machine learning (QML), yet their effectiveness critically depends on the design of expressive and hardware-compatible feature maps, a challenge that is partic...
Analog Programmable-Photonic Information
A. Ortiz, Ra'ul L'opez March, P. Romero +2 more·Jun 26, 2025
The limitations of digital electronics in handling real-time matrix operations for emerging computational tasks - such as artificial intelligence, drug design, and medical imaging - have prompted renewed interest in analog computing. Programmable Int...
Robust Tripartite Entanglement Generation via Correlated Noise in Spin Qubits
Sander Driessen, Ji Zou, Even Thingstad +2 more·Jun 25, 2025
We investigate the generation of genuine tripartite entanglement in a triangular spin-qubit system due to spatially correlated noise. In particular, we demonstrate how the formation of a highly entangled dark state -- a W state -- enables robust, lon...