supported by the Major Research Plan of the National Natural Science Foundation of China(Grant No.91121023);the National Natural Science Foundation of China(Grant Nos.11574092,61378012,and 60978009);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20124407110009);the National Basic Research Program of China(Grant Nos.2011CBA00200 and 2013CB921804);the Program for Innovative Research Team in University(Grant No.IRT1243)
We investigate the phase sensitivity of the SU(1,1) interfereometer [SU(1,1)I] and the modified Mach-Zehnder in- terferometer (MMZI) with the entangled coherent states (ECS) as inputs. We consider the ideal ca...
supported by the Major Research Plan of the National Natural Science Foundation of China(Grant No.91121023);the National Natural Science Foundation of China(Grant Nos.61378012,60978009,and 11574092);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20124407110009);the National Basic Research Program of China(Grant Nos.2011CBA00200 and 2013CB921804);the Program for Changjiang Scholar and Innovative Research Team in University,China(Grant No.IRT1243)
We propose a scheme for entangling two nanomechanical oscillators by Coulomb interaction in an optomechanical system. We find that the steady-state entanglement of two charged nanomechanical oscillators can be obtaine...
supported by the National Key Basic Research Program of China(Grant Nos.2011CBA00200 and 2011CB921200);the National Natural Science Foundation of China(Grant Nos.61201239,6120511811304397 and 61475148);the Strategic Priority Research Program(B)of the Chinese Academy of Sciences(Grant Nos.XDB01030100 and XDB01030300)
Quantum key distribution (QKD) is a technology with the potential capability to achieve information-theoretic security. Phase- coding is an important approach to develop practical QKD systems in fiber channel. In or...
Project supported by the Major Research Plan of the National Natural Science Foundation of China(Grant No.91121023);the National Natural Science Foundation of China(Grant Nos.61378012 and 60978009);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20124407110009);the National Basic Research Program of China(Grant Nos.2011CBA00200 and 2013CB921804);the Program for Changjiang Scholar and Innovative Research Team in Universities,China(Grant No.IRT1243)
We theoretically investigate the entanglement properties in a hybrid system consisting of an optical cavity-array coupled to a mechanical resonator. We show that the steady state of the system presents bipartite conti...
supported by the National Basic Research Program of China(Grant Nos.2011CBA00200 and 2011CB921200);the National Natural Science Foundation of China(Grant Nos.61201239,61205118,11304397 and 61475148);China Postdoctoral Science Foundation(Grant No.2013M540514);Anhui Provincial Natural Science Foundation(Grant No.1408085QF102)
Measurement-device-independent quantum key distribution(MDI-QKD) is aimed at removing all detector side channel attacks,while its security relies on the assumption that the encoding systems including sources are fully...
Project supported by the National Basic Research Program of China(Grant Nos.2011CBA00200 and 2011CB921200);the National Natural Science Foundation of China(Grant Nos.61475148,61201239,61205118,and 11304397);the China Postdoctoral Science Foundation(Grant No.2013M540514)
In a practical quantum key distribution(QKD) system, imperfect equipment, especially the single-photon detector,can be eavesdropped on by a blinding attack. However, the original blinding attack may be discovered by...
supported by the Major Research Plan of the National Natural Science Foundation of China(Grant No.91121023);the National Natural Science Foundation of China(Grant Nos.61378012 and 60978009);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20124407110009);the National Basic Research Program of China(Grant Nos.2011CBA00200 and 2013CB921804);the Program for Changjiang Scholars and Innovative Research Team in University,China(Grant No.IRT1243)
We investigate the properties of the ponderomotive squeezing and the entanglements in a ring cavity with two vibrational mirrors. In the part about squeezing, we find that the squeezing spectrum of the transmitted fie...
sponsored by the 973 programs (Nos. 2011CBA00200 and 2012CB921803);the NSFC programs (Nos. 61490714, 11304151, 61435008, and 61225026);the Ph.D. Programs Foundation of the Ministry of Education of China (No.20120091120020);the support from the Program for Changjiang Scholars and Innovative Research Team in University (No.IRT13021);PAPD
A high-efficiency technique for optical vortex(OV) generation is proposed and demonstrated. The technique is based on liquid crystal fork gratings with space-variant azimuthal orientations, which are locally controlle...
supported by the National Natural Science Foundation of China(Nos.61101137,61201239,61205118,and 11304397);the National Basic Research Program of China(Nos.2011CBA00200 and2011CB921200)
We report an adjustable unbalanced quantum random-number generator based on the polarization of photons,which can produce nondeterministic true random unbalanced numbers. The underlying physical process is inherently ...
This work was sponsored by the 973 programs(Nos.2011CBA00200 and 2012CB921803);the National Natural Science Foundation of China(Nos.61490714,11304151 and 61435008);the PhD Programs Foundation of the Ministry of Education of China(No.20120091120020);Yan-Qing Lu appreciates the support from National Science Fund for Distinguished Young Scholars(No.61225026);the Program for Changjiang Scholars and Innovative Research Team in University(No.IRT13021);Biao-Bing Jin appreciates the support from the 973 program(No.2014CB339800);the National Natural Science Foundation of China(Nos.61371035 and 11227904);Cooperative Innovation Centre of Terahertz Science,University of Electronic Science and Technology(Chengdu,China).
Versatile devices,especially tunable ones,for terahertz imaging,sensing and high-speed communication,are in high demand.Liquid crystal based components are perfect candidates in the optical range;however,they encounte...