Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
iSWAP gate with polar molecules: Robustness criteria for entangling operations
Matteo Bergonzoni, Sven Jandura, G. Pupillo·Feb 28, 2025
Ultracold polar molecules in optical lattices or tweezer arrays offer a promising platform for quantum information processing and simulation, thanks to their rich internal structure and long-range dipolar interactions. Recent experimental advances no...
Distributed Variational Quantum Algorithm with Many-qubit for Optimization Challenges
Seongmin Kim, In-Saeng Suh·Feb 28, 2025
Optimization problems are critical across various domains, yet existing quantum algorithms, despite their great potential, struggle with scalability and accuracy due to excessive reliance on entanglement. To address these limitations, we propose vari...
High-Fidelity Integrated Quantum Photonic Logic Via Robust Directional Couplers
Jonatan Piasetzky, Khen Cohen, Yehonatan Drori +4 more·Feb 27, 2025
Scalable quantum information processing with integrated photonics requires quantum logic operations with high fidelity and robustness. Directional couplers, the fundamental elements enabling quantum interference and logic operations, are inherently s...
Enhancing quantum computations with the synergy of auxiliary field quantum Monte Carlo and computational basis tomography
V. Khinevich, Wataru Mizukami·Feb 27, 2025
We introduce QC-CBT-AFQMC, a hybrid algorithm that incorporates computational basis tomography (CBT) into the quantum-classical auxiliary-field quantum Monte Carlo (QC-AFQMC) method proposed by Huggins et al. [Nature 603, 416-420 (2022)], replacing t...
Network-Assisted Collective Operations for Efficient Distributed Quantum Computing
I. F. Llovo, Guillermo Díaz-Camacho, Natalia Costas Lago +1 more·Feb 26, 2025
Distributed quantum computing relies on coordinated operations between remote quantum processing units (QPUs), yet most existing work either assumes full connectivity, unrealistic for large networks, or relies on entanglement swapping. To mitigate th...
Calibrating quantum gates up to 52 qubits in a superconducting processor
D. Fan, Guoding Liu, Shaowei Li +18 more·Feb 26, 2025
Benchmarking large-scale quantum gates, typically involving multiple native two-qubit and single-qubit gates, is crucial in quantum computing. Global fidelity, encompassing information about inter-gate correlations, offers a comprehensive metric for ...
Dynamical cluster-based strategy for improving tensor network algorithms in quantum circuit simulations
Andrea De Girolamo, P. Facchi, P. Rabl +3 more·Feb 26, 2025
We optimize matrix-product state-based algorithms for simulating quantum circuits with finite fidelity, specifically the time-evolving block decimation (TEBD) and the density-matrix renormalization group (DMRG) algorithms, by exploiting the irregular...
Novel quantum circuit for image compression utilizing modified Toffoli gate and quantized transformed coefficient alongside a novel reset gate
Md. Ershadul Haque, Manoranjan Paul·Feb 25, 2025
Quantum image computing has emerged as a groundbreaking field, revolutionizing how we store and process data at speeds incomparable to classical methods. Nevertheless, as image sizes expand, so does the complexity of qubit connections, posing signifi...
Holonomic quantum computation: a scalable adiabatic architecture
Clara Wassner, Tommaso Guaita, Jens Eisert +1 more·Feb 24, 2025
Holonomic quantum computation exploits the geometric evolution of eigenspaces of a degenerate Hamiltonian to implement unitary evolution of computational states. In this work we introduce a framework for performing scalable quantum computation in ato...
Quantum Encoding of Structured Data with Matrix Product States
Josh Green, Jingbo B Wang·Feb 23, 2025
The amplitude encoding of an arbitrary $n$-qubit state vector requires $Ω(2^n)$ gate operations, owing to the exponential dimension of the Hilbert space. We can, however, form dimensionality-reduced representations of quantum states using matrix prod...
OPAQUE: Obfuscating Phase in Quantum Circuit Compilation for Efficient IP Protection
Anees Rehman, Vincent Langford, Yuntao Liu·Feb 23, 2025
Quantum compilers play a crucial role in quantum computing by converting these algorithmic quantum circuits into forms compatible with specific quantum computer hardware. However, untrusted quantum compilers present considerable risks, including the ...
EHands: Quantum Protocol for Polynomial Computation on Real-Valued Encoded States
Jan Balewski, C. Pestano, Mercy G. Amankwah +3 more·Feb 21, 2025
We present EHands, a quantum-native protocol for implementing multivariable polynomial transformations on quantum processors. The protocol introduces four fundamental, reversible operators: multiplication, addition, negation, and parity flip, and emp...
Quantum computer formulation of the FKP-operator eigenvalue problem for probabilistic learning on manifolds
Christian Soize, Loïc Joubert-Doriol, A. Izmaylov·Feb 20, 2025
We present a quantum computing formulation to address a challenging problem in the development of probabilistic learning on manifolds (PLoM). It involves solving the spectral problem of the high-dimensional Fokker-Planck (FKP) operator, which remains...
Adaptive syndrome extraction
Noah F. Berthusen, Shi Jie Samuel Tan, Eric Huang +1 more·Feb 20, 2025
Device error rates on current quantum computers have improved enough to where demonstrations of error correction below break-even are now possible. Still, the circuits required for quantum error correction introduce significant overhead and sometimes...
Noise Mitigation in Single Microwave Photon Counting by Cascaded Quantum Measurements
A. May, Leo Sutevski, J. Solard +7 more·Feb 20, 2025
While single-photon counting is routinely achieved in the optical domain, operational single microwave photon detectors (SMPDs) have only recently been demonstrated. SMPDs are critical for sensing weak signals from incoherent emitters, with applicati...
Correcting and Extending Trotterized Quantum Many-Body Dynamics
G. Gentinetta, Friederike Metz, Giuseppe Carleo·Feb 19, 2025
A complex but important challenge in understanding quantum mechanical phenomena is the simulation of quantum many-body dynamics. Although quantum computers offer significant potential to accelerate these simulations, their practical application is cu...
The Q-Spellbook: Crafting Surface Code Layouts and Magic State Protocols for Large-Scale Quantum Computing
Avimita Chatterjee, Archisman Ghosh, Swaroop Ghosh·Feb 16, 2025
Quantum error correction is a cornerstone of reliable quantum computing, with surface codes emerging as a prominent method for protecting quantum information. Surface codes are efficient for Clifford gates but require magic state distillation protoco...
Parallelizing the stabilizer formalism for quantum machine learning applications
Vu Tuan Hai, Le Vu Trung Duong, Pham Hoai Luan +1 more·Feb 15, 2025
The quantum machine learning model is emerging as a new model that merges quantum computing and machine learning. Simulating very deep quantum machine learning models requires a lot of resources, increasing exponentially based on the number of qubits...
Suppressing spurious transitions using spectrally balanced pulse
Ruixia Wang, Yaqing Feng, Yujia Zhang +10 more·Feb 14, 2025
Achieving precise control over quantum systems presents a significant challenge, especially in many-body setups, where residual couplings and unintended transitions undermine the accuracy of quantum operations. In superconducting qubits, parasitic in...
Constant Overhead Entanglement Distillation via Scrambling
Andi Gu, Lorenzo Leone, Kenneth Goodenough +1 more·Feb 13, 2025
High-fidelity quantum entanglement enables key quantum networking capabilities such as secure communication and distributed quantum computing, but long-distance entanglement distribution is limited by noise and loss. Entanglement distillation protoco...