Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hybrid Quantum State Preparation via Data Compression
Emad Rezaei Fard Boosari, Maryam Afsary·Dec 1, 2025
Quantum state preparation (QSP) for a general $n$-qubit state requires $O(2^n)$ CNOT gates and circuit depth, making exact amplitude encoding (EAE) impractical for near-term quantum hardware. We introduce an ancilla-free hybrid classical-quantum stra...
Quantum computing applications in High Energy Physics: clustering, integration and generative models
Jorge J. Martínez de Lejarza·Dec 1, 2025
This PhD thesis explores the potential of quantum computing to address computational challenges in high-energy physics (HEP). As the Standard Model (SM) leaves key questions unanswered and no signs of new physics have emerged since the Higgs boson di...
Measurement-based quantum computation on weighted graph states with arbitrarily small weight
Tomohiro Yamazaki, Yuki Takeuchi·Dec 1, 2025
Weighted graph states are a natural generalization of graph states, which are generated by applying controlled-phase gates, instead of controlled-Z gates, to a separable state. In this paper, we show that uniformly weighted graph states on a suitable...
Scoring-based Static Variable Ordering for Decision Diagram-based Quantum Circuit Simulation
Yusuke Kimura, Masahiro Fujita, Robert Wille·Dec 1, 2025
Decision diagram (DD)-based quantum circuit simulators represent quantum states and gates using DDs, enabling memory-efficient and fast simulations for some quantum circuits like Shor. Although it is known that DD size and processing time vary depend...
Multiqubit Rydberg Gates for Quantum Error Correction
David F. Locher, Josias Old, Katharina Brechtelsbauer +4 more·Nov 30, 2025
Multiqubit gates that involve three or more qubits are usually thought to be of little significance for fault-tolerant quantum error correction because single gate faults can lead to high-weight correlated errors. However, recent works have shown tha...
Optimal Control of thermally noisy quantum gates in a multilevel system
Aviv Aroch, Shimshon Kallush, Ronnie Kosloff·Nov 30, 2025
Quantum systems are inherently sensitive to environmental noise and imperfections in external control fields, posing a significant challenge for the practical implementation of quantum technologies. These noise sources degrade the fidelity of quantum...
Optimized Many-Hypercube Codes toward Lower Logical Error Rates and Earlier Realization
Hayato Goto·Nov 29, 2025
Many-hypercube codes, concatenated ${[[n,n-2,2]]}$ quantum error-detecting codes ($n$ is even), have recently been proposed as high-rate quantum codes suitable for fault-tolerant quantum computing. While the original many-hypercube codes with ${n=6}$...
A Concatenated Dual Displacement Code for Continuous-Variable Quantum Error Correction
Fucheng Guo, Frank Mueller, Yuan Liu·Nov 29, 2025
The continuous-variable (CV) Gaussian no-go theorem fundamentally limits the suppression of Gaussian displacement errors using only Gaussian gates and states. Prior studies have employed Gottesman-Kitaev-Preskill (GKP) states as ancillary qumodes to ...
UNIQ: Communication-Efficient Distributed Quantum Computing via Unified Nonlinear Integer Programming
Hui Zhong, Jiachen Shen, Lei Fan +4 more·Nov 29, 2025
Distributed quantum computing (DQC) is widely regarded as a promising approach to overcome quantum hardware limitations. A major challenge in DQC lies in reducing the communication cost introduced by remote CNOT gates, which are significantly slower ...
Persistence of Quantum Triality Relations in Open Qubit and Qutrit Systems
Pratidhwani Swain, Ramita Sarkar, Sukanta K. Tripathy +1 more·Nov 28, 2025
We examine the complementarity among coherence (visibility), predictability, and entanglement for qubit and qutrit systems subjected to noisy quantum channels. Using the system-path entanglement framework, analytical expressions for all three quantit...
Qubit Reuse Beyond Reorder and Reset: Optimizing Quantum Circuits by Fully Utilizing the Potential of Dynamic Circuits
Damian Rovara, Lukas Burgholzer, Robert Wille·Nov 27, 2025
Qubit reuse offers a promising way to reduce the hardware demands of quantum circuits, but current approaches are largely restricted to reordering measurements and applying qubit resets. In this work, we present an approach to further optimize quantu...
Recursive Clifford noise reduction
Aharon Brodutch, Gregory Baimetov, Edwin Tham +1 more·Nov 27, 2025
Clifford noise reduction (CliNR) is a partial error correction scheme that reduces the logical error rate of Clifford circuits at the cost of a modest qubit and gate overhead. The CliNR implementation of an $n$-qubit Clifford circuit of size $s$ achi...
Superconducting Qubit Gates Robust to Parameter Fluctuations
Emily Wright, Leo Van Damme, Niklas J. Glaser +14 more·Nov 27, 2025
State-of-the-art single-qubit gates on superconducting transmon qubits can achieve the fidelities required for error-corrected computations. However, parameter fluctuations due to qubit instabilities, environmental changes, and control inaccuracies m...
Sum rule for non-adiabatic geometric phases
Adam Fredriksson, Erik Sjöqvist·Nov 27, 2025
Berry monopoles always cancel when summing over a complete set of energy eigenstates. We demonstrate that analogous sum rules exist for geometric phases and their underlying 2-forms in non-adiabatic evolution. Our result has implications for qudit co...
Ultrafast Single Qubit Gates through Multi-Photon Transition Removal
Y. Gao, A. Galicia, J. D. Da Costa Jesus +12 more·Nov 27, 2025
One of the main enablers in quantum computing is having qubit control that is precise and fast. However, qubits typically have multilevel structures making them prone to unwanted transitions from fast gates. This leakage out of the computational subs...
Unifying Collective Effects in Emission, Absorption, and Transfer
Adesh Kushwaha, Erik M. Gauger, Ivan Kassal·Nov 27, 2025
Collective effects, such as superradiance and subradiance are central to emerging quantum technologies -- from sensing to energy storage -- and play an important role in light-harvesting. These effects enhance or suppress rates of dynamic processes (...
Controlled-SWAP gates by tuning of interfering transition pathways in neutral atom arrays
Mohammadsadegh Khazali, Klaus Mølmer·Nov 27, 2025
Neutral-atom quantum processors employ Rydberg blockade for multiqubit phase operations but lack similar native exchange and conditional exchange gates, which are essential primitives for state verification, fermionic and XY-model simulation, and eff...
Optimal Control for Rydberg multi-qubit operations
Hossein Abedi, Mohammadsadegh Khazali, Klaus Mølmer·Nov 27, 2025
Quantum computing algorithms can be decomposed into a universal set of elementary one- and two-qubit gates. Different physical implementations of quantum computing, however, employ interactions that permit direct conditional dynamics on multiple qubi...
Lattice Surgery Aware Resource Analysis for the Mapping and Scheduling of Quantum Circuits for Scalable Modular Architectures
Batuhan Keskin, Cameron Afradi, Sylvain Lovis +4 more·Nov 26, 2025
Quantum computing platforms are evolving to a point where placing high numbers of qubits into a single core comes with certain difficulties such as fidelity, crosstalk, and high power consumption of dense classical electronics. Utilizing distributed ...
Measure and Forget Dynamics in Random Circuits
Yucheng He, Todd A. Brun·Nov 26, 2025
"Forgetful" measurements-physically similar to dephasing-are of interest both for applications to fault-tolerant quantum computing and fundamentally, in studying how entanglement and entropy spread. This paper investigates measurement-induced phase t...