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Laser spectroscopy of cold and trapped molecular ions is a powerful tool for fundamental physics, including the determination of fundamental constants, the laboratory test for their possible variation, and the search for a possible electric…

Atomic Physics · Physics 2016-02-26 Fabian Wolf , Yong Wan , Jan C. Heip , Florian Gebert , Chunyan Shi , Piet O. Schmidt

Whole slide image (WSI) assessment is a challenging and crucial step in cancer diagnosis and treatment planning. WSIs require high magnifications to facilitate sub-cellular analysis. Precise annotations for patch- or even pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2023-11-20 Simon Holdenried-Krafft , Peter Somers , Ivonne A. Montes-Majarro , Diana Silimon , Cristina Tarín , Falko Fend , Hendrik P. A. Lensch

Quantum illumination has been proposed and demonstrated to improve the signal-to-noise ratio (SNR) in light detection and ranging (LiDAR). When relying on coincidence detection, such a quantum LiDAR is limited by the response time of the…

Quantum Physics · Physics 2023-08-02 Gewei Qian , Xingqi Xu , Shun-An Zhu , Chenran Xu , Fei Gao , V. V. Yakovlev , Xu Liu , Shi-Yao Zhu , Da-Wei Wang

We investigate how relative phase information, encoded by a single qubit $H\,\varphi\,H$ gate sequence, is reflected in the quantum Fisher information (QFI) under noisy dynamics. Within a collision model framework, algorithmically prepared…

Quantum Physics · Physics 2025-09-23 S. Elham Mousavigharalari , Deniz Türkpençe

Single-cell datasets often lack individual cell labels, making it challenging to identify cells associated with disease. To address this, we introduce Mixture Modeling for Multiple Instance Learning (MMIL), an expectation maximization…

Quantitative Methods · Quantitative Biology 2024-06-13 Erin Craig , Timothy Keyes , Jolanda Sarno , Maxim Zaslavsky , Garry Nolan , Kara Davis , Trevor Hastie , Robert Tibshirani

Molecular quantum sensors represent a promising frontier for the detection of nuclear magnetic resonance signals and alternating current magnetic fields at the nanoscale, potentially reaching single-proton sensitivity. Although the triplet…

Chemical Physics · Physics 2026-05-18 Maria Grazia Concilio , Yiwen Wang , Siyuan Wang , Xueqian Kong

A low-power, compact device for performing measurements in electrical systems with isolated voltage domains is proposed. Isolated measurements are required in numerous applications. For instance, a measurement of the bus voltage for a…

Signal Processing · Electrical Eng. & Systems 2024-03-01 Peter Weber , Antonia Papandreou-Suppappola

We theoretically investigate a single fluorescent molecule as a hybrid quantum optical device, in which multiple external laser sources exert control of the vibronic states. In the high-saturation regime, a coherent interaction is…

Current attempts to test local position invariance (LPI) compare different clock transition rates with classically exchanged signals. We propose an experimental scheme for the quantum test of LPI: an internal atomic clock interferometer…

Quantum Physics · Physics 2023-01-27 Zhifan Zhou

Entanglement is a defining feature of quantum mechanics that can be a resource in engineered and natural systems, but measuring entanglement in experiment remains elusive especially for large chemical systems. Most practical approaches…

Quantum Physics · Physics 2021-11-03 Andrew E. Sifain , Francesca Fassioli , Gregory D. Scholes

Trapped atoms and ions are among the best controlled quantum systems which find widespread applications in quantum information, sensing and metrology. For molecules, however, a similar degree of control is currently lacking owing to their…

Quantum Physics · Physics 2020-03-25 Mudit Sinhal , Ziv Meir , Kaveh Najafian , Gregor Hegi , Stefan Willitsch

The problem of demonstrating entanglement is central to quantum information processing applications. Resorting to standard entanglement witnesses requires one to perfectly trust the implementation of the measurements to be performed on the…

Quantum Physics · Physics 2013-02-12 Cyril Branciard , Denis Rosset , Yeong-Cherng Liang , Nicolas Gisin

Imperfections in experimental measurement schemes can lead to falsely identifying, or over estimating, entanglement in a quantum system. A recent solution to this is to define schemes that are robust to measurement imperfections -…

Quantum Physics · Physics 2016-05-18 E. Verbanis , A. Martin , D. Rosset , C. C. W. Lim , R. T. Thew , H. Zbinden

The control over quantum states in atomic systems has led to the most precise optical atomic clocks to date. Their sensitivity is currently bounded by the standard quantum limit, a fundamental floor set by quantum mechanics for uncorrelated…

As laser interferometer gravitational wave (GW) detectors become quantum noise dominated, understanding the fundamental limit on measurement sensitivity imposed by quantum uncertainty is crucial to guide the search for further noise…

Quantum Physics · Physics 2019-06-19 Belinda Pang , Yanbei Chen

Quantum secret sharing (QSS) plays a pivotal role in multiparty quantum communication, ensuring the secure distribution of private information among multiple parties. However, the security of QSS schemes can be compromised by attacks…

Quantum Physics · Physics 2025-04-03 Tianqi Liu , Jiancheng Lai , Zhenhua Li , Tao Li

We show that the Quantum State Distinguishability (QSD), which is a QSZK-complete problem, and the Quantum Circuit Distinguishability (QCD), which is a QIP-complete problem, can be solved by the verifier who can perform only single-qubit…

Quantum Physics · Physics 2016-07-05 Tomoyuki Morimae

Quantum state readout with minimal resources is crucial for scalable quantum information processing. As a leading platform, neutral atom arrays rely on atomic fluorescence imaging for qubit readout, requiring short exposure, low photon…

Quantum Key Distribution (QKD) promises to revolutionize the field of security in communication, with applications ranging from state secrets to personal data, making it a key player in the ongoing battle against cyber threats.…

We propose that the quantum conditional mutual information (QCMI), computed with a suitably chosen partition of the system, serves as a powerful probe for detecting measurement-induced entanglement phase transitions in monitored quantum…

Quantum Physics · Physics 2025-12-30 Yuichi Otsuka , Kazuhiro Seki , Seiji Yunoki