Results 101 to 110 of about 1,078,579 (226)

QUANTUM METROLOGY WITH COLD ATOMS [PDF]

, 2014
53 pages, 9 figures, revised ...
Huang, Jiahao, Wu, Shuyuan, Zhong, Honghua, Lee, Chaohong   +3 more
openaire   +2 more sources

Channel Simulation in Quantum Metrology [PDF]

, 2018
In this review we discuss how channel simulation can be used to simplify the most general protocols of quantum parameter estimation, where unlimited entanglement and adaptive joint operations may be employed.
Spedalieri, Gaetana, Stefano Pirandola, Samuel L. Braunstein, Riccardo Laurenza, Lupo, Cosmo, Gaetana Spedalieri, Cosmo Lupo, Pirandola, Stefano, Laurenza, Riccardo, Braunstein, Samuel L.   +9 more
core   +1 more source

The use of Cryptographic Principles within Metrology Software [PDF]

Typically the design and production of metrology software is based upon a rigorous process of establishing the software requirements. Both the metrology and security requirements will be processed and normally evaluated in isolation, or at best ...
Longstaff, Andrew P., Parkinson, Simon, Allen, Gary, Fletcher, Simon, Crampton, Andrew, Myers, Alan   +5 more
core   +3 more sources

Quantum metrology with imperfect states and detectors

, 2010
Quantum enhancements of precision in metrology can be compromised by system imperfections. These may be mitigated by appropriate optimization of the input state to render it robust, at the expense of making the state difficult to prepare.
Datta, Animesh, Walmsley, IA, Smith, BJ, Dorner, U, Datta, A, Smith, B.J., Walmsley, I.A., Datta, A., Thomas-Peter, Nicholas, Animesh Datta, Ian A. Walmsley, Lijian Zhang, Nicholas Thomas-Peter, Walmsley, Ian, Thomas-Peter, N, Smith, Brian, Zhang, Lijian, Dorner, U., Zhang, L., Zhang, L, Uwe Dorner, Brian J. Smith, Thomas-Peter, N.   +22 more
core   +1 more source

Experimental Advances in Phase Estimation with Photonic Quantum States

Entropy
Photonic quantum metrology has emerged as a leading platform for quantum-enhanced precision measurements. By taking advantage of quantum resources such as entanglement, quantum metrology enables parameter estimation with sensitivities surpassing ...
Laura T. Knoll, Agustina G. Magnoni, Miguel A. Larotonda   +2 more
doaj   +1 more source

Dissipative quantum metrology in manybody systems of identical particles

New Journal of Physics, 2014
Estimation of physical parameters is essential in almost any part of science and technology. The enhancement of performance in this task (e.g. beating the standard classical shot-noise limit) using available physical resources is a major goal in ...
F Benatti, S Alipour, A T Rezakhani
doaj   +1 more source

Strain‐Tunable Photoluminescence From Ge Quantum Dots on Si Nanotips for CMOS‐Compatible Photonics

Advanced Physics Research, EarlyView.
This work studies strain in Ge quantum dots grown on Si nanotips using photoluminescence, X‐ray diffraction, and band structure calculations. It shows how emission changes with dot size, evaluates strain in the dot and substrate, and explains the role of direct and indirect transitions in the optical behavior.
Diana Ryzhak, Johannes Aberl, Enrique Prado‐Navarrete, Lada Vukušić, Oliver Skibitzki, Petr Klenovský, Marvin Hartwig Zoellner, Markus Andreas Schubert, Moritz Brehm, Davide Spirito, Giovanni Capellini   +10 more
wiley   +1 more source

Fractional Shapiro steps in a cavity-coupled Josephson ring condensate

Physical Review Research
The Josephson effect presents a fundamental example of macroscopic quantum coherence as well as a crucial enabler for metrology (e.g., voltage standard), sensing (e.g., superconducting quantum interference device), and quantum information processing ...
Nalinikanta Pradhan, Rina Kanamoto, M. Bhattacharya, Pankaj Kumar Mishra   +3 more
doaj   +1 more source

Compositionally Engineered Carboxymethyl Cellulose‐Based Optical Fibers With Exceptionally Low Optical Loss and Quantitative Humidity Sensing

Advanced Physics Research, EarlyView.
Carboxymethyl cellulose‐based biopolymer optical fibers are fabricated using aqueous wet spinning. The fibers exhibit record‐low optical attenuation in polysaccharide‐based waveguides while maintaining efficient transmission across the visible‐to‐near‐infrared region of the electromagnetic spectrum.
Jani Patrakka, Alizee Sanouillet, Ville Hynninen, Nonappa   +3 more
wiley   +1 more source

Diffraction‐Free Natural Optical Skyrmions and Their Subwavelength Confinement Around Vortices

Laser &Photonics Reviews, EarlyView.
ABSTRACT Diffraction causes waves to spread out as they propagate freely. The tighter the lateral confinement, the faster the spreading. Past research on how to suppress diffraction has been based on wave engineering and has led so far to idealized waves that, in real settings, eventually diffract.
Nilo Mata‐Cervera, Deepak K. Sharma, Ramon Paniagua‐Dominguez, Yijie Shen, Miguel A. Porras   +4 more
wiley   +1 more source