-
1.发明公开QUANTUM INFORMATION PROCESSING USING ELECTROMAGNETICALLY INDUCED TRANSPARENCY 审中-公开量子信息处理采用电磁引起的透明度
公开(公告)号：EP1609037A2
公开(公告)日：2005-12-28
申请号：EP04710149.8
申请日：2004-02-11
发明人： BEAUSOLEIL, Raymond G. , KENT, Adrian P. , KUEKES, Philip J. , MUNRO, William J. , SPILLER, Timothy P. , WILLIAMS, R. Stanley
IPC分类号： G06F1/00
CPC分类号： B82Y10/00 , G06N99/002
摘要： Quantum information processing structures and methods use photons and four-level matter systems in electromagnetically induced transparency (EIT) arrangements for one and two-qubit quantum gates , two-photon phase shifters , and Bell state measurement devices . For efficient coupling of the matter systems to the photons while decoupling the matter systems from the phonon bath, molecular cages or molecular tethers keep atoms/molecules within the electromagnetic field of the photon, e.g., in the evanescent field surrounding the core of an optical fiber carrying the photons. To reduce decoherence caused by spontaneous emissions, the matter systems can be embedded in photonic bandgap crystals or the matter systems can be selected to include matastable energy levels.
-
2.发明公开NON-DEMOLITION PHOTON DETECTOR THAT PRESERVES INPUT STATE CHARACTERISTICS 有权非分解光电子器件，DER DIE EINGANGSKENNLINIENBEIBEHÄLT
公开(公告)号：EP1761887A2
公开(公告)日：2007-03-14
申请号：EP05741090.4
申请日：2005-04-28
发明人： BEAUSOLEIL, Raymond, G. , MUNRO, William J. , SPILLER, Timothy P. , KAE, Nemoto , BARRETT, Sean
IPC分类号： G06N1/00
CPC分类号： G06N99/002 , B82Y10/00
摘要： A device capable of efficiently detecting a single-photon signal preserves a photon characteristic such as polarization or angular momentum. The device can include a beam splitter that splits an input photon state into modes that are distinguished by states of a characteristic of signal photons in the input photon state, a non-destructive measurement system capable of measuring a total number of photons in the modes without identifying a photon number for any individual one of the modes; and a beam combiner positioned to combine the modes after output from the non-destructive detection system.
摘要翻译： 能够有效地检测单光子信号的装置保持诸如偏振或角动量的光子特性。 该装置可以包括分束器，其将输入光子状态分解为通过输入光子状态中的信号光子的特性的状态来区分的模式，能够测量模式中的光子总数的无损测量系统， 识别任何单独的一种模式的光子数; 以及射束组合器，其被定位成在从非破坏性检测系统输出之后组合模式。
-
公开(公告)号：EP1756762A2
公开(公告)日：2007-02-28
申请号：EP05743382.3
申请日：2005-04-28
IPC分类号： G06N1/00
CPC分类号： G06N99/002 , B82Y10/00
摘要： Systems and methods convert or transfer quantum information from one photonic representation or state to another. This permits conversion of quantum information from one encoding to another and to representations that are convenient, efficient, or required for desired manipulations.
摘要翻译： 系统和方法将量子信息从一个光子表示或状态转换或传输到另一个。 这允许将量子信息从一种编码转换成另一种编码，并且可以方便，有效地或为了期望的操作而需要的表示。
-
4.发明公开DETECTING ONE OR MORE PHOTONS FROM THEIR INTERACTIONS WITH PROBE PHOTONS IN A MATTER SYSTEM 审中-公开识别一个或光子您更多的带探头光子交互在物质系统
公开(公告)号：EP1668573A2
公开(公告)日：2006-06-14
申请号：EP04789267.4
申请日：2004-09-28
发明人： BEAUSOLEIL, Raymond G. , MUNRO, William J. , SPILLER, Timothy P. , NEMOTO, Kae , BARRETT, Sean D.
IPC分类号： G06N1/00
CPC分类号： G06N99/002 , B82Y10/00
摘要： A device capable of efficiently detecting a single-photon signal includes a matter system (112), sources (114 and 610) of a first beam and a second beam, and a measurement (420) system. The matter system (112) has a first energy level and a second energy level such that a signal photon couples to a transition between the first energy level and the second energy level. The first beam contains photons that couple to a transition between the second energy level and a third energy level of the matter system (112), and the second beam contains photons that couple to a transition between the third energy level and a fourth energy level of the matter system (112). The measurement system (420) measures a change in the first or second beam to detect the absence, the presence, or the number of the photons in the signal.
-
-
-
搜索结果
4 条记录 (耗时 0.013 秒)
