Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
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 ...
Quantum reservoir computing for photonic entanglement witnessing
Danilo Zia, Luca Innocenti, Giorgio Minati +10 more·Feb 25, 2025
Accurately estimating properties of quantum states, such as entanglement, while essential for the development of quantum technologies, remains a challenging task. Standard approaches to property estimation rely on detailed modeling of the measurement...
Disentangling quantum autoencoder
Adithya Sireesh, Abdulla Alhajri, M. Kim +1 more·Feb 25, 2025
Entangled quantum states are highly sensitive to noise, which makes it difficult to transfer them over noisy quantum channels or to store them in quantum memory. Here, we propose the disentangling quantum autoencoder (DQAE) to encode entangled states...
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...
A Computational Framework for Simulations of Dissipative Nonadiabatic Dynamics on Hybrid Oscillator-Qubit Quantum Devices.
Nam P Vu, Daniel Dong, Xiaohan Dan +3 more·Feb 25, 2025
We introduce a computational framework for simulating nonadiabatic vibronic dynamics on circuit quantum electrodynamics (cQED) platforms. Our approach leverages hybrid oscillator-qubit quantum hardware with midcircuit measurements and resets, enablin...
STQS: A Unified System Architecture for Spatial Temporal Quantum Sensing
Anastashia Jebraeilli, Chenxu Liu, Keyi Yin +4 more·Feb 25, 2025
We present STQS, a unified system architecture for spatiotemporal quantum sensing that interlaces four key quantum components: sensing, memory, communication, and computation. By employing a comprehensive gate-based framework, we systemically explore...
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...
Solving the Traveling Salesman Problem via Different Quantum Computing Architectures
Venkat Padmasola, Zhaotong Li, Rupak Chatterjee +1 more·Feb 24, 2025
We study the application of emerging photonic and quantum computing architectures to solving the Traveling Salesman Problem (TSP), a well-known NP-hard optimization problem. We investigate several approaches: Simulated Annealing (SA), Quadratic Uncon...
Beyond NISQ: The Megaquop Machine
J. Preskill·Feb 24, 2025
Today’s Noisy Intermediate-Scale Quantum (NISQ) computers have scientific value, but quantum machines with broad practical value must be protected against noise using quantum error correction and fault-tolerant protocols. Recent studies of quantum er...
Voltage noise thermometry in integrated circuits at millikelvin temperatures
G. Ridgard, M. Thompson, L. Schreckenberg +5 more·Feb 23, 2025
This paper demonstrates the use of voltage noise thermometry, with a cross-correlation technique, as a dissipation-free method of thermometry inside a CMOS integrated circuit (IC). We show that this technique exhibits broad agreement with the refrige...
Decision-tree decoders for general quantum LDPC codes
K. Ott, Bence Het'enyi, M. Beverland·Feb 23, 2025
We introduce Decision Tree Decoders (DTDs), which rely only on the sparsity of the binary check matrix, making them broadly applicable for decoding any quantum low-density parity-check (qLDPC) code and fault-tolerant quantum circuits. DTDs construct ...
Quantum autoencoders for image classification
Hinako Asaoka, Kazue Kudo·Feb 21, 2025
Classical machine learning often struggles with complex, high-dimensional data. Quantum machine learning offers a potential solution, promising more efficient processing. The quantum convolutional neural network (QCNN), a hybrid algorithm, fits curre...
Digitized counterdiabatic quantum critical dynamics
Anne-Maria Visuri, Alejandro Gomez Cadavid, Balaganchi A. Bhargava +6 more·Feb 20, 2025
We experimentally demonstrate that a digitized counterdiabatic quantum protocol reduces the number of topological defects created during a fast quench across a quantum phase transition. To show this, we perform quantum simulations of one- and two-dim...
Optimizing Continuous-Wave-Pumped Entanglement-based QKD in Noisy Environments
Hashir Kuniyil, Saif Al-Kuwari, Asad Ali +2 more·Feb 20, 2025
Quantum key distribution (QKD) has emerged as a promising solution to protect current cryptographic systems against the threat of quantum computers. As QKD transitions from laboratories to real-world applications, its implementation under various env...
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...
Micro Blossom: Accelerated Minimum-Weight Perfect Matching Decoding for Quantum Error Correction
Yue Wu, Namitha Liyanage, Lin Zhong·Feb 20, 2025
Minimum-Weight Perfect Matching (MWPM) decoding is important to quantum error correction decoding because of its accuracy. However, many believe that it is difficult, if possible at all, to achieve the microsecond latency requirement posed by superco...
Purest Quantum State Identification
Yingqi Yu, Honglin Chen, Jun Wu +2 more·Feb 20, 2025
Quantum noise constitutes a fundamental obstacle to realizing practical quantum technologies. To address the pivotal challenge of identifying quantum systems least affected by noise, we introduce the purest quantum state identification, which can be ...
Time-adaptive single-shot crosstalk detector on superconducting quantum computer
Haiyue Kang, B. Harper, Muhammad Usman +1 more·Feb 20, 2025
Quantum crosstalk which stems from unwanted interference of quantum operations with nearby qubits is a major source of noise or errors in a quantum processor. In the context of shared quantum computing, it is challenging to mitigate the crosstalk eff...
Packaged Quantum States for Quantum Simulation of Lattice Gauge Theories
Rongchao Ma·Feb 20, 2025
We develop a mathematical framework for the quantum simulation of lattice gauge theories using gauge-invariant packaged quantum states \cite{Ma2017,Ma2025}. In this formalism, every single excitation transforms as a complete \textbf{irreducible repre...
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...