Results 91 to 100 of about 205,117 (196)

Quantum Frequency Combs with Path Identity for Quantum Remote Sensing

Physical Review X
Quantum sensing promises to revolutionize sensing applications by employing quantum states of light or matter as sensing probes. Photons are the clear choice as quantum probes for remote sensing because they can travel to and interact with a distant ...
D. A. R. Dalvit, T. J. Volkoff, Y.-S. Choi, A. K. Azad, H.-T. Chen, P. W. Milonni   +5 more
doaj   +1 more source

Polarization Division Multiplexing CV-QKD with Pilot-Aided Polarization-State Sensing

Mathematics
Continuous-variable quantum key distribution (CV-QKD) with local local oscillator (LLO) is well-studied for its security and simplicity, but enhancing performance and interference resistance remains challenging.
Zicong Tan, Tao Wang, Yuehan Xu, Xu Liu, Lang Li, Beibei Zhang, Yuchao Liu, Peng Huang, Guihua Zeng   +8 more
doaj   +1 more source

Quantum deep generative prior with programmable quantum circuits

Communications Physics
Exploiting the utility of near-term quantum devices is a long-standing challenge whereas hybrid quantum machine learning emerges as a promising candidate.
Tailong Xiao, Xinliang Zhai, Jingzheng Huang, Jianping Fan, Guihua Zeng   +4 more
doaj   +1 more source

Time-Symmetric Quantum Theory of Smoothing

, 2009
Smoothing is an estimation technique that takes into account both past and future observations, and can be more accurate than filtering alone. In this Letter, a quantum theory of smoothing is constructed using a time-symmetric formalism, thereby ...
A. H. Jazwinski, C. W. Gardiner, E. Pardoux, H. Carmichael, H. J. Kushner, I. V. Aleksandrov, L. Mandel, Mankei Tsang, V. P. Belavkin, V. P. Belavkin, V. P. Belavkin, V. P. Belavkin   +11 more
core   +1 more source

Single charge sensing and transport in double quantum dots fabricated from commercially grown Si/SiGe heterostructures

, 2012
We perform quantum Hall measurements on three types of commercially available modulation doped Si/SiGe heterostructures to determine their suitability for depletion gate defined quantum dot devices.
Dovzhenko, Y., Koppinen, P. J., Payette, C., Petta, J. R., Sturm, J. C., Wang, K.   +5 more
core   +1 more source

Magnetic pseudo-fields in a rotating electron-nuclear spin system

, 2017
A precessing spin observed in a rotating frame of reference appears frequency-shifted, an effect analogous to the precession of a Foucault pendulum observed on the rotating Earth.
Fein, Y. Y., Hollenberg, L. C. L., Lilette, E., Martin, A. M., Perunicic, V. S., Scholten, R. E., Wood, A. A.   +6 more
core   +1 more source

On-line Quantum State Estimation Using Continuous Weak Measurement and Compressed Sensing

, 2018
We propose a new protocol for on-line quantum system estimation on the basis of continuous weak-measurements with the help of compressive sensing and the optimization algorithm.
Cong, S., Harraz, S., Li, K., Tang, 1 Y., Yang, J.   +4 more
core  

Achieving 5% 13C nuclear spin hyperpolarization in high-purity diamond at room temperature and low magnetic field

Scientific Reports
Optically polarizable nitrogen-vacancy (NV) centers in diamond enable hyperpolarization of 13C nuclear spins at a low magnetic field and room temperature.
Vladimir Vladimirovich Kavtanyuk, Changjae Lee, Keunhong Jeong, Jeong Hyun Shim   +3 more
doaj   +1 more source

Near-Field Microwave Imaging Method of Monopole Antennas Based on Nitrogen-Vacancy Centers in Diamond

Micromachines
Visualizing the near-field distribution of microwave field in a monopole antenna is very important for antenna design and manufacture. However, the traditional method of measuring antenna microwave near field distribution by mechanical scanning has some ...
Xuguang Jia, Yue Qin, Zhengjie Luo, Shining Zhu, Xin Li, Hao Guo   +5 more
doaj   +1 more source

A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure

Micromachines
Efforts to enhance the speed and reduce the energy consumption of underwater vehicles have led to the proposal of a novel mucus release structure inspired by the secretion of mucus cells on fish skin.
Pengfei Zhao, Xin Li, Zhengjie Luo, Qihang Zhai, Ye Tian, Kaisheng Zhang, Hao Guo   +6 more
doaj   +1 more source