Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Leveraging Symmetry Merging in Pauli Propagation
Yanting Teng, Su Yeon Chang, Manuel S. Rudolph +1 more·Dec 12, 2025
We introduce a symmetry-adapted framework for simulating quantum dynamics based on Pauli propagation. When a quantum circuit possesses a symmetry, many Pauli strings evolve redundantly under actions of the symmetry group. We exploit this by merging P...
Cavity Mediated Two-Qubit Gate: Tuning to Optimal Performance with NISQ Era Quantum Simulations
Shreekanth S. Yuvarajan, Vincent Iglesias-Cardinale, David Hucul +1 more·Dec 12, 2025
A variety of photon-mediated operations are critical to the realization of scalable quantum information processing platforms and their accurate characterization is essential for the identification of optimal regimes and their experimental realization...
Holographic Representation of One-Dimensional Many-Body Quantum States via Isometric Tensor Networks
Kaito Kobayashi, Benjamin Sappler, Frank Pollmann·Dec 12, 2025
Isometric tensor network states (isoTNS) allow for efficient and accurate simulations of higher-dimensional quantum systems by enforcing an isometric structure. We bring this idea back to one dimension by introducing a holographic isoTNS ansatz: a (1...
A Room-Temperature Extreme High Vacuum System for Trapped-Ion Quantum Information Processing
Lewis Hahn, Nikhil Kotibhaskar, Fabien Lefebvre +4 more·Dec 12, 2025
We present a room-temperature Extreme High Vacuum (XHV) system engineered to support the long-duration operation of a trapped-ion quantum processor. Background-gas collisions impose limitations on trapped-ion performance and scalability by interrupti...
Exact and Tunable Quantum Krylov Subspaces via Unitary Decomposition
Ayush Asthana·Dec 12, 2025
Quantum Krylov subspace methods can extract ground and excited states by diagonalizing the Hamiltonian in a compact variational space. In practice, these spaces are almost always generated by real or imaginary time evolution, forcing a timestep trade...
Bloch oscillation in a Floquet engineering quadratic potential system
J. Cao, H. Shen, R. Wang +1 more·Dec 12, 2025
We investigate the quantum dynamics of a one-dimensional tight-binding lattice driven by a spatially quadratic and time-periodic potential. Both Hermitian ($J_1 = J_2$) and non-Hermitian ($J_1 \neq J_2$) hopping regimes are analyzed. Within the frame...
Hardware Efficient Quantum Kernels Using Multimode Bulk Acoustic Resonators
Collin C. D. Frink, Chaoyang Ti, Stephen K. Gray +2 more·Dec 12, 2025
The kernel trick is a widely applicable technique in machine learning domains that maps datasets that are difficult to classify into a computationally friendly feature space. As the dimension of the dataset scales, these kernel calculations can quick...
Tight bound for the total time in digital-analog quantum computation
Mikel Garcia-de-Andoin, Mikel Sanz·Dec 12, 2025
Digital-analog quantum computing (DAQC) is a universal computational paradigm that combines the evolution under an entangling Hamiltonian with the application of single-qubit gates. Since any unitary operation can be decomposed into a sequence of evo...
The Lattice Schwinger Model and Its Quantum Simulation
Joao C. Pinto Barros, Pierpaolo Fontana, Pasquale Sodano +1 more·Dec 12, 2025
In this chapter we review results on the lattice Schwinger model. In par-ticular, we show how the effect of the anomaly is reproduced on the lattice. We connect these results to recent developments in the field of quantum simulation of interacting fi...
Processing through encoding: Quantum circuit approaches for point-wise multiplication and convolution
Andreas Papageorgiou, Paulo Vitor Itaborai, Kostas Blekos +1 more·Dec 12, 2025
This paper introduces quantum circuit methodologies for pointwise multiplication and convolution of complex functions, conceptualized as "processing through encoding". Leveraging known techniques, we describe an approach where multiple complex functi...
Stabilizer-based quantum simulation of fermion dynamics with local qubit encodings
Anthony Gandon, Samuele Piccinelli, Max Rossmannek +4 more·Dec 12, 2025
Simulating the dynamical properties of large-scale many-fermion systems is a longstanding goal of quantum chemistry, material science and condensed matter. Local fermion-to-qubit encodings have opened a new path for practical fermionic simulations on...
Maritime object classification with SAR imagery using quantum kernel methods
John Tanner, Nicholas Davies, Pascal Elahi +5 more·Dec 12, 2025
Illegal, unreported, and unregulated (IUU) fishing causes global economic losses of \$10-25 billion annually and undermines marine sustainability and governance. Synthetic Aperture Radar (SAR) provides reliable maritime surveillance under all weather...
Advantage in distributed quantum computing with slow interconnects
Evan E Dobbs, Nicolas Delfosse, Aharon Brodutch·Dec 11, 2025
The main bottleneck for distributed quantum computing is the rate at which entanglement is produced between quantum processing units (QPUs). In this work, we prove that multiple QPUs connected through slow interconnects can outperform a monolithic ar...
A Cryogenic Muon Tagging System Based on Kinetic Inductance Detectors for Superconducting Quantum Processors
Ambra Mariani, Laura Cardani, Mustafa Bal +16 more·Dec 11, 2025
Ionizing radiation has emerged as a potential limiting factor for superconducting quantum processors, inducing quasiparticle bursts and correlated errors that challenge fault-tolerant operation. Atmospheric muons are particularly problematic due to t...
A Proof of Success and Reward Distribution Protocol for Multi-bridge Architecture in Cross-chain Communication
Damilare Peter Oyinloye, Mohd Sameen Chishti, Jingyue Li·Dec 11, 2025
Single-bridge blockchain solutions enable cross-chain communication. However, they are associated with centralization and single-point-of-failure risks. This paper proposes Proof of Success and Reward Distribution (PSCRD), a novel multi-bridge respon...
Efficient simulation of low-entanglement bosonic Gaussian states in polynomial time
Tong Liu, Hui-Ke Jin, Tao Xiang +1 more·Dec 11, 2025
Bosonic Gaussian states appear ubiquitously in quantum optics and condensed matter physics but remain difficult to simulate classically due to the hafnian bottleneck. We present an efficient algorithm that converts pure bosonic Gaussian states into m...
Insensitivity points and performance of open quantum interferometers under number-conserving & non-conserving Lindblad dynamics
Tommaso Favalli, Žan Kokalj, Andrea Trombettoni·Dec 11, 2025
We investigate the phase sensitivity of a linear two-mode atom interferometer subject to environmental noise, modeled within the framework of open quantum systems with both number-conserving and non-conserving Lindblad operators. Considering several ...
Quantum-Amplified M/G/1/K Simulation: A Comparator-Controlled Framework for Arbitrary Service Distributions
Or Peretz, Michal Koren, Nir Perel·Dec 11, 2025
Finite-capacity single-server queues with general service-time distributions form the backbone of numerous real-world systems, yet classical simulation of performance metrics such as blocking probabilities and delay becomes computationally prohibitiv...
Shot and Architecture Adaptive Subspace Variational Quantum Eigensolver for Microwave Simulation
Zhixiu Han, Fanxu Meng, Weidong Li +2 more·Dec 11, 2025
Quantum computing offers a promising paradigm for electromagnetic eigenmode analysis, enabling compact representations of complex field interactions and potential exponential speedup over classical numerical solvers. Recent efforts have applied varia...
Robust population transfer by a detuning sign jump: from two-state quantum system to SU(2)-symmetric three-state quantum system
Peter Chernev, Andon A. Rangelov·Dec 11, 2025
We propose and analyze a robust population-transfer protocol in a driven two-level system based on a sudden sign change of the detuning at the maximum of a smooth coupling pulse. Away from the jump the dynamics is adiabatic, while the sign flip produ...