Results 51 to 60 of about 145,584 (294)

Quantum noise in the position measurement of a cavity mirror undergoing Brownian motion [PDF]

, 1999
We perform a quantum theoretical calculation of the noise power spectrum for a phase measurement of the light output from a coherently driven optical cavity with a freely moving rear mirror. We examine how the noise resulting from the quantum back action
A. Dorsel, A. F. Pace, A. Gillespie, A. Heidmann, A. Heidmann, A. Luis, A. O. Caldeira, A. O. Caldeira, A. Yariv, B. C. Buchler, B. R. Mollow, C. Cohen-Tannoudji, C. Fabre, C. M. Caves, C. M. Caves, C. Schoenenberger, C. W. Gardiner, C. W. Gardiner, C. W. Gardiner, D. Hils, G. C. Bjorklund, G. C. Bjorklund, G. J. Milburn, H. M. Wiseman, H. M. Wiseman, H. P. Yuen, H. P. Yuen, I. Tittonen, I. Tittonen, K. A. Strain, K. Jacobs, K. Jacobs, K. Jacobs, K. Nakagawa, L. Diosi, L. Diosi, L. P. Ghislain, M. J. Collett, M. Ley, M. Ozawa, M. Pinard, M. Pinard, M. T. Jaekel, N. C. Wong, P. R. Saulson, P. Samphire, R. Loudon, R. S. Bondurant, R. W. P. Drever, S. Bose, S. Bose, S. Gnutzmann, S. Mancini, S. P. Vyatchanin, S. P. Vyatchanin, S. P. Vyatchanin, S. Schiller, T. D. Stowe, V. B. Braginsky, V. B. Braginsky, W. A. Edelstein, W. G. Unruh, W. G. Unruh, W. J. Munro, W.-T. Ni, Yi Pang   +65 more
core   +2 more sources

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Performance Analysis of MIMO-FSO System based on Quadrature Amplitude Modulation

Guangtongxin yanjiu, 2023
Free Space Optical (FSO) communication systems are easily affected by atmospheric turbulence effects. In order to reduce the Bit Error Rate (BER) of the system under saturated turbulence condition, and considering the requirement of maximum diversity ...
LI Pu, TANG Xuan, XU Jing, CHEN Yang
doaj  

Symbol error rate analysis for M-QAM modulated physical-layer network coding with phase errors

, 2012
Recent theoretical studies of physical-layer network coding (PNC) show much interest on high-level modulation, such as M-ary quadrature amplitude modulation (M-QAM), and most related works are based on the assumption of phase synchrony.
Huang, Y, Jamalipour, A, Song, Q, Wang, S   +3 more
core   +1 more source

Fibre segment interferometry using code-division multiplexed optical signal processing for strain sensing applications [PDF]

, 2013
A novel optical signal processing scheme for multiplexing fibre segment interferometers is proposed. The continuous-wave, homodyne technique combines code-division multiplexing with single-sideband modulation.
Charrett, Thomas O. H., Kissinger, Thomas, Tatam, Ralph P.   +2 more
core   +1 more source

Reducing Inhomogeneous MT (ihMT) Acquisition Time Using Frequency Alternation at Low Duty Cycle for Single Offset (FALSO) MT Preparations

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate Frequency Alternation at Low duty cycle for Single Offset (FALSO) as a novel Magnetization Transfer (MT) preparation scheme to increase speed and/or spatial resolution of inhomogeneous MT (ihMT) MRI by reducing the number of volumes required.
Gopal Varma, Aaron K. Grant, Lucas Soustelle, Olivier M. Girard, Guillaume Duhamel, David C. Alsop   +5 more
wiley   +1 more source

Complete elimination of information leakage in continuous-variable quantum communication channels [PDF]

, 2018
In all lossy communication channels realized to date, information is inevitably leaked to a potential eavesdropper. Here we present a communication protocol that does not allow for any information leakage to a potential eavesdropper in a purely lossy ...
Andersen, Ulrik L., Filip, Radim, Jacobsen, Christian S., Madsen, Lars S., Usenko, Vladyslav C.   +4 more
core   +3 more sources

Digital Twin‐Based Optimization of Service Availability in LEO Mega Constellations Considering Handover Delays in Open RAN

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram, Luca Feltrin, Mustafa Ozger, Cicek Cavdar   +3 more
wiley   +1 more source

Quantum study of information delay in electromagetically induced transparency [PDF]

, 2006
Using electromagnetically induced transparency (EIT), it is possible to delay and store light in atomic ensembles. Theoretical modelling and recent experiments have suggested that the EIT storage mechanism can be used as a memory for quantum information.
B. C. Buchler, G. Hétet, H.-A. Bachor, J. J. Longdell, M. T. L. Hsu, M. O. Scully, O. Glöckl, P. K. Lam   +7 more
core   +2 more sources

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source