Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Symmetry-Checking in Band Structure Calculations on a Noisy Quantum Computer
Shaobo Zhang, Akib Karim, H. Quiney +1 more·Jun 25, 2025
Band crossings in electronic band structures play an important role in determining the electronic, topological, and transport properties in solid-state systems, making them central to both condensed matter physics and materials science. The emergence...
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 ...
Consistent Simulation of Fibonacci Anyon Braiding within a Qubit Quasicrystal Inflation Code
Marcelo M. Amaral·Jun 25, 2025
The simulation of non-Abelian anyon braiding is a critical step towards fault-tolerant quantum computation. We introduce a framework for this task based on a one-dimensional Quasicrystal Inflation Code (QIC). The code is defined by a local Hamiltonia...
Variational simulation of quantum phase transitions induced by boundary fields
Alan C. Duriez, A. Saguia, M. S. Sarandy·Jun 25, 2025
The characterization of quantum phase transitions is a fundamental task for the understanding of quantum phases of matter, with a number of potential applications in quantum technologies. In this work, we use digital quantum simulation as a resource ...
Iterative Quantum Feature Maps
Nasa Matsumoto, Quoc Hoan Tran, Koki Chinzei +2 more·Jun 24, 2025
Quantum machine learning models that leverage quantum circuits as quantum feature maps (QFMs) are recognized for their enhanced expressive power in learning tasks. Such models have demonstrated rigorous end-to-end quantum speedups for specific famili...
Quantum utility-scale error mitigation for quantum quench dynamics in Heisenberg spin chains
Seokwon Choi, Talal Ahmed Chowdhury, Kwangmin Yu·Jun 24, 2025
We implement a quantum error mitigation method termed self-mitigation, which is comparable to zero-noise extrapolation, at large scales to achieve quantum utility on near-term, noisy quantum computers. We investigate the effectiveness of several quan...
ReBoot: Encrypted Training of Deep Neural Networks with CKKS Bootstrapping
Alberto Pirillo, Luca Colombo·Jun 24, 2025
Growing concerns over data privacy underscore the need for deep learning methods capable of processing sensitive information without compromising confidentiality. Among privacy-enhancing technologies, Homomorphic Encryption (HE) stands out by offerin...
Isoprobability Models of Qubit Dynamics: Demonstration via Time-Dependent Phase Control on IBM Quantum
Ivo S. Mihov, N. Vitanov·Jun 24, 2025
Efficient quantum control is a cornerstone for the advancement of quantum technologies, from computation to sensing and communications. Several approaches in quantum control, e.g. optimal control and inverse engineering, use pulse amplitude and frequ...
Nonstabilizerness and Error Resilience in Noisy Quantum Circuits
Fabian Ballar Trigueros, José Antonio Marín Guzmán·Jun 23, 2025
We investigate how noise impacts nonstabilizerness - a key resource for quantum advantage - in many-body qubit systems. While noise typically degrades quantum resources, we show that amplitude damping, a nonunital channel, can generate or enhance mag...
Bloch Vector Assertions for Debugging Quantum Programs
Noah Oldfield, Christoph Laaber, Shaukat Ali·Jun 23, 2025
Quantum programs must be reliable to ensure trustworthy results, yet debugging them is notoriously challenging due to quantum-specific faults like gate misimplementations and hardware noise, as well as their inherently probabilistic nature. Assertion...
Existence of a robust optimal control process for efficient measurements in a two-qubit system
R. Rodríguez, Nam Nguyen, Elizabeth Behrman +2 more·Jun 23, 2025
The verification of quantum entanglement is essential for quality control in quantum communication. In this work, we propose an efficient protocol to directly verify the two-qubit entanglement of a known target state through a single expectation valu...
Quantum-Hybrid Support Vector Machines for Anomaly Detection in Industrial Control Systems
Tyler Cultice, Md. Saif Hassan Onim, Annarita Giani +1 more·Jun 21, 2025
Sensitive data captured by Industrial Control Systems (ICS) play a large role in the safety and integrity of many critical infrastructures. Detection of anomalous or malicious data, or Anomaly Detection (AD), with machine learning is one of many vita...
A competitive NISQ and qubit-efficient solver for the LABS problem
Marco Sciorilli, Giancarlo Camilo, Thiago O. Maciel +3 more·Jun 20, 2025
Pauli Correlation Encoding (PCE) is as a qubit-efficient variational approach to combinatorial optimization problems. The method offers a polynomial reduction in qubit count and a super-polynomial suppression of barren plateaus. Here, we extend the P...
Fault Tolerance by Construction
Benjamin Rodatz, Boldizsár Poór, Aleks Kissinger·Jun 20, 2025
A key challenge in fault-tolerant quantum computing is synthesising and optimising circuits in a noisy environment, as traditional techniques often fail to account for the effect of noise on circuits. In this work, we propose and numerically verify a...
Fidelity Relations in an Array of Neutral Atom Qubits -- Experimental Validation of Control Noise
Deon Janse van Rensburg, Robert de Keijzer, Rogier Venderbosch +5 more·Jun 20, 2025
Noise is a hindering factor for current-era quantum computers. In this study, we experimentally validate the theoretical relationships between amplitude noise of the control signal and qubit state fidelity. The experiment comprises a 10x10 site optic...
Enhancing Expressivity of Quantum Neural Networks Based on the SWAP test
Sebastian Nagies, Emiliano Tolotti, Davide Pastorello +1 more·Jun 20, 2025
Quantum neural networks (QNNs) based on parametrized quantum circuits are promising candidates for machine learning applications, yet many architectures lack clear connections to classical models, potentially limiting their ability to leverage establ...
Abelian multi-cycle codes for single-shot error correction
Hsiang-Ku Lin, Pak Kau Lim, Alexey A. Kovalev +1 more·Jun 20, 2025
We construct a family of quantum low-density parity-check codes locally equivalent to higher-dimensional quantum hypergraph-product (QHP) codes. Similarly to QHP codes, the proposed codes have highly redundant sets of low-weight stabilizer generators...
Radiation-Induced Fault Detection in Superconducting Quantum Devices
Marzio Vallero, Gioele Casagranda, Flavio Vella +1 more·Jun 20, 2025
The quest for universal superconducting quantum computing is hindered by noise and errors. It has been proven that Quantum Error Correction (QEC) codes will lay at the foundation of fault tolerant quantum computing. However, cosmic-ray induced correl...
Generalized code distance through rotated logical states in quantum error correction
Valentine Nyirahafashimana, Nurisya Mohd Shah, Umair Abdul Halim +1 more·Jun 20, 2025
We construct rotated logical states by applying rotation operators to stabilizer states, extending the logical basis and modifying stabilizer generators. Rotation operators affect the effective code distance $d_R$, which decays exponentially with rot...