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Infrared (IR) imaging is invaluable across many scientific disciplines, from material analysis to diagnostic medicine. However, applications are often limited by detector cost, resolution and sensitivity, noise caused by the thermal IR…

In this work we propose a microwave photon detector which successfully reaches 100% efficiency with only one absorber. Our design consists of a metastable quantum circuit coupled to a semi-infinite transmission line which performs highly…

Mesoscale and Nanoscale Physics · Physics 2012-03-22 B. Peropadre , G. Romero , G. Johansson , C. M. Wilson , E. Solano , J. J. García-Ripoll

In this work, we propose two cost efficient methods for object identification, using a multi-fingered robotic hand equipped with proprioceptive sensing. Both methods are trained on known objects and rely on a limited set of features,…

Robotics · Computer Science 2024-04-01 Teresa Alves , Alexandre Bernardino , Plinio Moreno

Quantum random number generators (QRNGs) output genuine random numbers based upon the uncertainty principle. A QRNG contains two parts in general --- a randomness source and a readout detector. How to remove detector imperfections has been…

Quantum Physics · Physics 2016-01-14 Zhu Cao , Hongyi Zhou , Xiongfeng Ma

Two descriptions are introduced and analyzed for a reflectivity estimation and detection scheme that does not involve measurement of photons scattered by the target. One description, provided by the Hamiltonian dynamics of the full…

Quantum Physics · Physics 2024-08-23 T. J. Volkoff

The combination of interaction-free measurement and the quantum Zeno effect has been shown to both increase the signal-to-noise ratio of imaging, and decrease the light intensity flux through the imaged object. So far though, this has only…

Quantum Physics · Physics 2022-08-18 Jonte R. Hance , John Rarity

Optics-less cutaneous (skin) vision is not rare among living organisms, though its mechanisms and capabilities have not been thoroughly investigated. This paper demonstrates, using methods from statistical parameter estimation theory and…

We investigate the extent to which ``interaction-free'' measurements perturb the state of quantum systems. We show that the absence of energy exchange during the measurement is not a sufficient criterion to preserve that state, as the…

Quantum Physics · Physics 2009-11-06 S. Potting , E. S. Lee , W. Schmitt , I. Rumyantsev , B. Mohring , P. Meystre

Quantum metrology research promises approaches to build new sensors that achieve the ultimate level of precision measurement and perform fundamentally better than modern sensors. Practical schemes that tolerate realistic fabrication…

IoT sensors are crucial for visualizing multidimensional and multimodal information and enabling future IT applications/services such as cyber-physical space, digital twins, autonomous driving, smart cities, and virtual/augmented reality…

Signal Processing · Electrical Eng. & Systems 2024-03-27 Masaya Tashiro , Kosuke Ide , Kosei Asano , Satoshi Ishii , Yuta Sugiura , Akira Uchiyama , Ashif A. Fathnan , Hiroki Wakatsuchi

Human motion detection is getting considerable attention in the field of Artificial Intelligence (AI) driven healthcare systems. Human motion can be used to provide remote healthcare solutions for vulnerable people by identifying particular…

Signal Processing · Electrical Eng. & Systems 2020-08-07 William Taylor , Syed Aziz Shah , Kia Dashtipour , Adnan Zahid , Qammer H. Abbasi , Muhammad Ali Imran

Single photon detectors are fundamental tools of investigation in quantum optics and play a central role in measurement theory and quantum informatics. Photodetectors based on different technologies exist at optical frequencies and much…

Quantum Physics · Physics 2016-10-19 Sankar Raman Sathyamoorthy , Thomas M. Stace , Göran Johansson

Objects composed of lattice defects exist within a one-dimensional tight-binding model whose electron reflection coefficient in the low-energy case is equal to zero. Localized states are absent as well. The effective mass concept explains…

Other Condensed Matter · Physics 2007-05-23 A. A. Gorbatsevich

Real quantum measurements almost always cause a much stronger back action than required by the laws of quantum mechanics. In particular, free-space optical detection methods for single atoms and ions such as the shelving technique, though…

Quantum Physics · Physics 2011-06-10 Jürgen Volz , Roger Gehr , Guilhem Dubois , Jérôme Estève , Jakob Reichel

Robot-to-human object handover is an essential skill for robot assistants, from serving drinks at home to passing surgical tools in the operating room. We expect robots to perform handover robustly -- to release the object only after a firm…

Robotics · Computer Science 2026-05-07 Linfeng Li , Lin Shao , David Hsu

Detecting if and when objects change is difficult in passive sub-diffraction imaging of dynamic scenes. We consider the best possible tradeoff between responsivity and accuracy for detecting a change from one arbitrary object model to…

Quantum Physics · Physics 2023-08-17 Michael R Grace , Saikat Guha , Zachary Dutton

In this paper, we propose a method for implementing the interaction-free measurement (IFM) with mesoscopic devices fabricated on a high mobility GaAs/AlGaAs heterostructure, where a two-dimensional electron gas (2DEG) system is buried, at…

Quantum Physics · Physics 2017-12-12 Hiroo Azuma

Quantum sensing with undetected photons is a technique where photons of one wavelength probe a sample, but information is extracted by measuring photons of another wavelength that never interacts with the sample. This has seen significant…

Quantum sensors are powerful devices that exploit quantum effects to detect minute quantities with extremely high precision. Two obstacles to harnessing the full capacity of quantum probes are the resource-intensive preparation of the probe…

Quantum Physics · Physics 2025-08-28 Dingwei Zhao , Abolfazl Bayat , Victor Montenegro

Using tools from quantum information theory, we present a general theory of indistinguishability of identical bosons in experiments consisting of passive linear optics followed by particle number detection. Our results do neither rely on…