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Frontiers of Physics精选集：Hot AMO articles
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注：以下的论文合集是我们刊Frontiers of Physics为2008年11月清华大学高研中心举办的“超冷量子气前沿”国际研讨会而特别制作的，作者之一翟荟博士来自会议主席何天伦教授研究小组。 有兴趣的读者可以浏览我们的网站或通过下列纳米盘路径下载全文： http://www.namipan.com/d/Frontiers%20of%20Physics-Hot%20articles(AMO).pdf/28468da1d34872f77084a5d9072f21916d0b42b63e89e300 我将贴出后续各期的文章目录。 期待国内外物理学家不吝赐稿（综述或论文，英文版，篇幅不限，免一切费用）！ CONTENTS Frontiers of Physics Bound Edition (AMO Articles ■ Volume ~3) http://www.springerlink.com/content/1673-3606 Cover illustration The action of the collisional quantum gate array leads to entanglement oscillations in the multiparticle system. These can be made visibily in a Ramsey type interference experiment. For a disentangled state (left) the visibility of the resulting Ramsey interference pattern is rather high, whereas for an entangled state (middle) the visibility almost vanishes. A further application of the quantum gates can however restore the interference pattern again (right). The cover image is copied from the following website: http://www.quantum.physik.uni-mainz.de/bec/gallery/index.html Hot Articles in AMO (Atomic, Molecular, and Optical Physics) Strongly interacting ultracold quantum gases Hui ZHAI (翟荟)1,2,3,4 1 Center for Advanced Study, Tsinghua University, Beijing 100084, China 2 Department of Physics, Ohio-State University, Columbus, Ohio, 43210, USA 3 Material Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA 4 Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA E-mail: huizhai.physics@gmail.com This article reviews recent progresses in ultracold quantum gases, and it includes three subjects which are Fermi gases across a Feshbach resonance, quantum gases in the optical lattices and the fast rotating quantum gases. … 20 pages Manipulating atomic states via optical orbital angular-momentum Xiong-jun LIU (刘雄军) (*)1,2, Xin LIU2, Leong-Chuan KWEK1,3, Choo Hiap OH1 1 Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542 2 Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA 3 National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 639798 E-mail: phylx@physics.tamu.edu In this paper, we first review the general theory of generating adiabatic gauge field in ultracold atomic systems by coupling atoms to external optical fields with OAM, and point out the applications of the generated adiabatic gauge field. Then, we review our work in this field, including the generation of … 13pages Ion-trap quantum information processing: experimental status Dave KIELPINSKI Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia E-mail: dave.kielpinski@gmail.com, d.kielpinski@griffith.edu.au Atomic ions trapped in ultra-high vacuum form an especially well-understood and useful physical system for quantum information processing. They provide excellent shielding of quantum information from environmental noise, while strong, well-controlled laser interactions readily provide quantum logic gates. A number of basic quantum information protocols have been demonstrated with trapped ions. Much current work aims at the construction of large-scale ion-trap quantum computers using complex microfabricated trap arrays. Several groups are also actively pursuing quantum interfacing of trapped ions with photons…. 17pages The physics of 2 ≠ 1 + 1 Yanhua SHIH (史砚华) Department of Physics, University of Maryland, Baltimore County, Baltimore, MD 21250, USA E-mail: shih@umbc.edu One of the most surprising consequences of quantum mechanics is the entanglement of two or more distant particles. In an entangled EPR two-particle system, the value of the momentum (position) for neither single subsystem is determined. However, if one of the subsystems is measured to have a certain momentum (position), the other subsystem is determined to have a unique corresponding value, despite the distance between them. The peculiar behavior of an entangled quantum system has surprisingly been observed experimentally in two-photon temporal and spatial correlation measurements, such as “ghost” interference and “ghost” imaging. This article addresses the fundamental concerns behind these experimental observations and to explore the nonclassical nature of two-photon superposition by emphasizing the physics of 2≠1 + 1…. 28pages Generation and detection of infrared single photons and their applications He-ping ZENG (曾和平)1(*), Guang WU (吴光)1, E. Wu 1,2(武愕), Hai-feng PAN (潘海峰)1, Chun-yuan ZHOU (周春源)1, F. Treussart2, J.-F. Roch2 1 Key Laboratory of Optical and Magnetic Resonance Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062, China 2 Laboratoire de Photonique Quantique et Moléculaire, UMR CNRS 8537, ENS Cachan, 61 avenue du Président Wilson, 94235 Cachan cedex, France E-mail: hpzeng@phy.ecnu.edu.cn Unbreakable secret communication has been a dream from ancient time. It is quantum physics that gives us hope to turn this wizardly dream into reality. The rapid development of quantum cryptography may put an end to the history of eavesdropping. This will be largely due to the advanced techniques related to single quanta, especially infrared single photons. In this paper, we report on our research works on single-photon control for quantum cryptography, ranging from singlephoton generation to single-photon detection and their applications…. 20pages Continuous variable quantum communication with bright entangled optical beams Chang-de XIE (谢常德) (*), Jing ZHANG (张靖), Qing PAN (潘庆), Xiao-jun JIA (贾晓军), Kun-chi PENG (彭堃墀) State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China E-mail: changde@sxu.edu.cn In this paper, we briefly introduce the basic concepts and protocols of continuous variable quantum communication, and then summarize the experimental researches accomplished by our group in this field…. 13 pages The security and recent technology of quantum key distribution Xiang-bin WANG (王向斌)1(*), Hao YIN (尹浩)2, Huai-xin MA (马怀新)2, Cheng-zhi PENG (彭承志)1, Tao YANG (杨涛)3, Jian-wei PAN (潘建伟)3 1 Department of Physics, Tsinghua University, Beijing 100084, China 2 China Electronic System Engineering Company, Beijing 100039, China 3 Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China E-mail: wang_xiangbin@hotmail.com In principle, quantum key distribution (QKD) can be used to make unconditionally secure private communication. However, the security of the existing real system for QKD needs to be carefully examined. Actually, the existing experiments based on weak coherent states are not secure under photon-number-splitting attack…. 5pages [color=]Quantum secure direct communication and deterministic secure quantum communication Gui-lu LONG (龙桂鲁)1,2(*), Fu-guo DENG (邓富国)1,3, Chuan WANG (王川)1, Xi-han LI (李熙涵)2, Kai WEN1, Wan-ying WANG1 1 Key Laboratory for Atomic and Molecular Nanosciences and Department of Physics, Tsinghua University, Beijing 100084, China 2 Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China 3 Key Laboratory of Beam Technology and Material Modification of Ministry of Education, and Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China E-mail: gllong@tsinghua.edu.cn In this review article, we review the recent development of quantum secure direct communication (QSDC) and deterministic secure quantum communication (DSQC) which both are used to transmit secret message, including the criteria for QSDC, some interesting QSDC protocols, the DSQC protocols and QSDC network, etc. The difference between these two branches of quantum communication is that DSQC requires the two parties exchange at least one bit of classical information for reading out the message in each qubit, and QSDC does not…. 22 pages [ Last edited by donghg on 2009-1-9 at 16:32 ] |
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