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	1. Multiple cutoffs in high harmonic generation via multi-XUV-photon absorption
	Cui Sen,He Feng
	Physics 26 February 2014
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	Abstract:High harmonic generation (HHG) from He$^+$ exposed to combined XUV and infrared laser fields is studied by numerically solving the time dependent Schr"odinger equation. After the electron and gains energy from the infrared laser field, extra XUV photons may be absorbed during the electron and parent ion recombination, contributing multiple cutoffs separated by XUV photon energies in the high harmonic spectrum. This scenario is confirmed by time-delay-dependent HHG in the time-frequency representation, and by the power scaling of the cutoffs' intensities as a function of the XUV intensity.
	TO cite this article:Cui Sen,He Feng. Multiple cutoffs in high harmonic generation via multi-XUV-photon absorption[OL].[26 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4587643


	2. Quantum entangling gates in decoherence-free subspace via cavity-decay-assisted adiabatic passage
	Li Qi-Hai,Chen Yue-Yue,Zou Ping,Feng Xun-Li
	Physics 23 February 2014
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	Abstract:We propose a scheme to implement two-qubit quantum entangling gates in the decoherence-free subspaces for two atoms trapped in a single-mode cavity. Decoherence induced by the atomic spontaneous emission and cavity decay is efficiently suppressed by employing the technique of stimulated Raman adiabatic passage and the cavity-decay-assisted quantum Zeno effect. Numerical calculation shows that our scheme can generate quantum entangling gates with high fidelity.
	TO cite this article:Li Qi-Hai,Chen Yue-Yue,Zou Ping, et al. Quantum entangling gates in decoherence-free subspace via cavity-decay-assisted adiabatic passage[OL].[23 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4586944

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	3. Optical transportation of dielectric particles along a subwavelength diameter fiber in liquids using 1.55-μm wavelength
	ZHANG Yao
	Physics 17 February 2014
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	Abstract:By coupling laser at the wavelength of 1.55 μm into a subwavelength diameter fiber, optical transportation of dielectric particles in liquids has been demonstrated through the evanescent field around the fiber. With a laser power of ~90 mW coupled into the fibers, the transporting velocities of SiO2 particles (530-nm diameter) and TiO2 particles (1.5-μm diameter) along the fibers in water reach 8-13 and 16-22 μm/s, respectively. The experimental results show that despite the thermal effect induced by the field of the light penetrating into water, both micrometer- and nanometer-sized dielectric particles can be optically transported along the fibers with a relatively low laser power at the wavelength of 1.55 μm. Optical trapping and propulsion forces exerted on the particles and the influence of the 1.55-μm laser induced thermal effect on transporting velocities have been theoretically analyzed, indicating that a transverse temperature gradient caused by the 1.55-μm wavelength significantly affects the transporting stability and efficiency of fibers in different diameters.
	TO cite this article:ZHANG Yao. Optical transportation of dielectric particles along a subwavelength diameter fiber in liquids using 1.55-μm wavelength[OL].[17 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4585879


	4. Entanglement replication in driven hybrid quantum devices withsuperconducting resonators and nitrogen-vacancy-center ensembles
	Ma Shengli,Li Pengbo
	Physics 14 February 2014
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	Abstract:We consider a hybrid quantum device involving two independent arrays oflinearly coupled superconducting transmission line resonators, each of whichis magnetically coupled to a separate nitrogen-vacancy-center ensemble $($NVE%$)$. With the first-beginning pair of resonators locally driven by a commontwo-mode microwave squeezed field, at steady state a series of inter-arrayentangled NVE pairs over all distance can be produced via a dissipativerepumping process. In the case of collective excitations of the NVEs, wefind that all the NVE pairs have the same entanglement of the driving field,thus realizing a perfect scale-free entanglement replication mechanism. Thepresent work may open up new perspectives for the realization of NVE-basedscalable quantum information architectures.
	TO cite this article:Ma Shengli,Li Pengbo. Entanglement replication in driven hybrid quantum devices withsuperconducting resonators and nitrogen-vacancy-center ensembles[OL].[14 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4585512


	5. Optical rogue waves generated on Gaussian background beam
	Liu Chong,Yang Zhanying,Zhao Lichen,Xin Guoguo,Yang Wenli
	Physics 25 January 2014
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	Abstract:Optical rogue waves in a nonlinear graded-index waveguidewith variable coefficients are studied. An exact rogue wave solution on Gaussianbackground beam is presented, in contrast to the previous studies about rogue waves on plane wave background. It is shown that the characteristics of rogue wavesare maintained on Gaussianbackground beam, even that the beam's width is a bit smaller than the rogue waves scale.These results may raise the possibility of relatedexperiments and potential applications in nonlinear optics.
	TO cite this article:Liu Chong,Yang Zhanying,Zhao Lichen, et al. Optical rogue waves generated on Gaussian background beam[J].


	6. Two-component polariton condensate in optical microcavity
	ZHANG Yong-Chang,ZHOU Xiang-Fa,GUO Guang-Can,ZHOU Xing-Xiang,PU Han,ZHOU Zheng-Wei
	Physics 22 January 2014
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	Abstract:This paper presents a scheme for engineering the extended two-component Bose-Hubbard model using polariton condensate supported by optical microcavity. Compared to the usual two-component Bose-Hubbard model with only Kerr nonlinearity, this model includes a nonlinear tunneling term which depends on the number difference of the particle in the two modes. In the mean field treatment, this model is an analog to a nonrigid pendulum with a variable pendulum length whose sign can be also changed. This paper studies the dynamic and ground state properties of this model and shows that there exists a first-order phase transition as the strength of the nonlinear tunneling rate is varied. Furthermore, a scheme to obtain the polariton condensate wave function is proposed.
	TO cite this article:ZHANG Yong-Chang,ZHOU Xiang-Fa,GUO Guang-Can, et al. Two-component polariton condensate in optical microcavity[OL].[22 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4583524


	7. Changing two-photon correlation into anticorrelation by superposing thermal and laser light
	LIU Jianbin,ZHOU Yu,XU Zhuo,LI Fuli
	Physics 09 January 2014
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	Abstract:Two-photon correlation can be changed into two-photon anticorrelation by superposing thermal and laser light with the same frequency and polarization. Two-photon interference theory is employed to interpret this phenomenon. An experimental scheme is designed to verify the theoretical predictions by employing pseudothermal light to simulate thermal light. The experimental results are consistent with the theoretical results.
	TO cite this article:LIU Jianbin,ZHOU Yu,XU Zhuo, et al. Changing two-photon correlation into anticorrelation by superposing thermal and laser light[J].


	8. The focusing performance of a radially polarized beam
	Jie Lin,Jian Guan,Peng Jin
	Physics 08 January 2014
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	Abstract:The focusing performance of a radially polarized beams, which are Bessel-Gaussian, Sinh-Gaussian and hollow Gaussian beam, focused by lens with high numerical aperture are investigated based on Debye integral. The maximal intensity shifts from focal spot and the lateral resolution are explored. The effect of parameters of Bessel-Gaussian beam on the achievement of optical needle is also explored. Meanwhile, beam quality and size of focusing spot is achieved for incident sinh-Gaussian beam with large value of parameters. The focusing performance are strongly influenced by the parameters of hollow Gaussian beam and the subwavelength focusing can be achieved by the incident radially polarized hollow Gaussdian beam. Therefore, the proposed radially polarized beams can be applied in focusing lens with high numerical aperture to achieve focusing with super resolution.
	TO cite this article:Jie Lin,Jian Guan,Peng Jin. The focusing performance of a radially polarized beam[OL].[ 8 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4580237


	9. Sub-wavelength focusing generated by radially polarized doughnut Gaussian beams
	Jie Lin,Jian Guan,Jiubin Tan,Peng Jin
	Physics 03 January 2014
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	Abstract:The radial polarized doughnut Gaussian beam is introduced firstly. The focusing characteristics of radial polarized doughnut Gaussian beam by lens with high numerical aperture is investigated based on Richards-Wolf's vectorial diffraction method. Numerical results indicates that sub-wavelength focusing are obtained for incident radial polarized doughnut Gaussian beam. Therefore, radial polarized doughnut Gaussian beam is considerable in the field of super-resolution focusing.?????
	TO cite this article:Jie Lin,Jian Guan,Jiubin Tan, et al. Sub-wavelength focusing generated by radially polarized doughnut Gaussian beams[OL].[ 3 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4580240


	10. A study about multi-trapping of a tapered-tip single fiber optical tweezers
	LIU Zhihai,LIANG Peibo,ZHANG Yu
	Physics 26 December 2013
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	Abstract:We develop and accomplish a study about multi-trapping characteristic of a tapered-tip single fiber optical tweezers. The finite difference time domain (FDTD) method is employed to simulate the trapping force characteristic of this single fiber optical tweezers, and the results show that the quantity of the trapped particles depending on the refractive index and the size of the particles. Besides that the trapping forces of this tapered-tip single fiber optical tweezers have been calibrated by the experiment method, and the experimental results are consistent with the theoretical calculation results. The multi-trapping capability realized by the tapered-tip single fiber optical tweezers will be practical and useful for some applications in biomedical researching fields.
	TO cite this article:LIU Zhihai,LIANG Peibo,ZHANG Yu. A study about multi-trapping of a tapered-tip single fiber optical tweezers[OL].[26 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4577658

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