Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
An exact Markovian decoherence dynamics of two interacting harmonic oscillators coupled to a bosonic heat bath
Gábor Homa, Dávid Hamar, József Zsolt Bernád +2 more·Jul 2, 2025
We present an exact analytical solution of the Hu-Paz-Zhang master equation in a precise Markovian limit for a system of two harmonically coupled harmonic oscillators interacting with a common thermal bath of harmonic oscillators. The thermal bath is...
Fluctuation theorems for multipartite quantum coherence and correlation dynamics
Kun Zhang, Mo-Yang Ni, Hai-Long Shi +2 more·Jul 2, 2025
Fluctuation theorems establish exact relations for nonequilibrium dynamics, profoundly advancing the field of stochastic thermodynamics. In this work, we extend quantum fluctuation theorems beyond the traditional thermodynamic framework to quantum mu...
Fiber transmission of cluster states via multi-level time-bin encoding
Philip Rubeling, Robert Johanning, Jan Heine +2 more·Jul 2, 2025
The next generation of telecommunication networks will rely on the transmission of complex quantum states to enable secure and transformative information processing, utilizing entanglement and superposition. Cluster states - multipartite entangled st...
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...
Quantum machine learning for state tomography using classical data
S. Jabeen, Dmytro Kurdydyk, Aadi Palnitkar +3 more·Jul 1, 2025
Reconstructing quantum states from measurement data represents a formidable challenge in quantum information science, especially as system sizes grow beyond the reach of traditional tomography methods. While recent studies have explored quantum machi...
Quantum state transfer and maximal entanglement between distant qubits using a minimal quasicrystal pump
A. Ghosh, R. Souto, Vahid Azimi-Mousolou +2 more·Jul 1, 2025
Coherent quantum state transfer over macroscopic distances between non-neighboring elements in quantum circuits is a crucial component to increase connectivity and simplify quantum information processing. To facilitate such transfers, an efficient an...
Vortex Detection from Quantum Data
Chelsea A. Williams, Annie E. Paine, A. A. Gentile +2 more·Jun 30, 2025
Quantum solutions to differential equations represent quantum data -- states that contain relevant information about the system's behavior, yet are difficult to analyze. We propose a toolbox for reading out information from such data, where customize...
Single Qudit Control in $^{87}$Sr via Optical Nuclear Electric Resonance
Johannes K. Krondorfer, Matthias Diez, Andreas W. Hauser·Jun 29, 2025
Optical nuclear electric resonance (ONER) was recently proposed as a fast and robust single-qubit gate mechanism in $^{87}$Sr. Here, we demonstrate through numerical simulations that ONER can be extended to single-qudit control, addressing multiple o...
Scaling Laws of Quantum Information Lifetime in Monitored Quantum Dynamics
Bingzhi Zhang, Fangjun Hu, Runzhe Mo +3 more·Jun 28, 2025
Quantum information is typically fragile under measurements and environmental coupling. Remarkably, we find that its lifetime can scale exponentially with system size when the environment is continuously monitored via mid-circuit measurements -- rega...
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 ...
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...
Quantum-Accelerated Wireless Communications: Concepts, Connections, and Implications
Naoki Ishikawa, Giuseppe Thadeu Freitas de Abreu, Petar Popovski +1 more·Jun 25, 2025
Quantum computing is poised to redefine the algorithmic foundations of communication systems. While quantum superposition and entanglement enable quadratic or exponential speedups for specific problems, identifying use cases where these advantages yi...
Measurement-based quantum computing with qudit stabilizer states
Alena Romanova, Wolfgang Dür·Jun 25, 2025
We show how to perform measurement-based quantum computing on qudits (high-dimensional quantum systems) using alternative resource states beyond the cluster state. Estimating overheads for gate decomposition, we find that generalizing standard qubit ...
Thermodynamic criteria for signaling in quantum channels
Yutong Luo, Simon Milz, Felix C. Binder·Jun 25, 2025
Signaling quantum channels are fundamental to quantum communication, enabling the transfer of information from input to output states. In contrast, thermalisation erases information about the initial state. This raises a crucial question: How does th...
Trion quantum coherence in site-controlled pyramidal InGaAs quantum dots
R. A. Barcan, I. Samaras, K. Barr +3 more·Jun 25, 2025
Deterministically positioned pyramidal InGaAs quantum dots (QDs) exhibit exceptional quantum properties, making them highly promising candidates for scalable on-chip quantum information processing. In this work, we investigate the coherent dynamics o...
Computed tomography of propagating microwave photons
Qi-Ming Chen, Aarne Keranen, Aashish Sah +1 more·Jun 25, 2025
Propagating photons serve as essential links for distributing quantum information and entanglement across distant nodes. Knowledge of their Wigner functions not only enables their deployment as active information carriers but also provides error diag...
Efficient Inversion of Unknown Unitary Operations with Structured Hamiltonians
Yin Mo, Tengxiang Lin, Xin Wang·Jun 25, 2025
Unknown unitary inversion is a fundamental primitive in quantum computing and physics. Although recent work has demonstrated that quantum algorithms can invert arbitrary unknown unitaries without accessing their classical descriptions, improving the ...
Sequential Quantum Computing
Sebastián V. Romero, Alejandro Gomez Cadavid, E. Solano +1 more·Jun 25, 2025
We propose and experimentally demonstrate sequential quantum computing (SQC), a paradigm that utilizes multiple homogeneous or heterogeneous quantum processors in hybrid classical-quantum workflows. In this manner, we are able to overcome the limitat...
A spectral quantum algorithm for numerical differentiation and integration
Jordan Cioni, Fabio Semperlotti·Jun 24, 2025
Numerical calculus algorithms which estimate derivatives and integrals from data series acquired either via measurements or by sampling functions are essential in scientific computing. To date, a few quantum algorithms have been developed to perform ...