. . . "Quantum noise is an irreducible component of world of single photons and weak continuous optical signals. Quantum optics is a rapidly growing field studying fundamental aspects of quantum noise of light. Investigation of an electro-optical (EO) control of quantum noise of light is the main goal of this project. The EO control uses a partial measurement of the optical signal, electronic feedback or feed-forward loop and correction of the optical signal by the EO modulation. Based on our previous resultsand knowledge in this field, we will theoretically study quantum noise behavior in the systems with EO control, subsequently propose new experimentally feasible methods how to manipulate and reduce quantum noise\u00A0 and, finally, we will collaborate on an experimental demonstration of these proposals. Specifically, the research will be concentrated on four recent topics: (1) EO control in quantum memories, (2) measurement-induced high-order nonlinearity, (3) erasing of noise by EO control and (4) EO"@en . . " quantum noise" . . "2008-01-01+01:00"^^ . . "2010-04-16+02:00"^^ . "2010-12-31+01:00"^^ . . . "Kvantov\u00FD \u0161um je ned\u00EDlnou slo\u017Ekou sv\u011Bta jednotliv\u00FDch foton\u016F a kvantov\u00FDch spojit\u00FDch optick\u00FDch sign\u00E1l\u016F. Kvantov\u00E1 optika je rychle se rozv\u00EDjej\u00EDc\u00ED discipl\u00EDna studuj\u00EDc\u00ED fundament\u00E1ln\u00ED aspekty kvantov\u00E9ho \u0161umu sv\u011Btla. Zkoum\u00E1n\u00ED elektro-optick\u00E9 (EO) kontroly kvantov\u00E9ho \u0161umu je hlavn\u00EDm programem tohoto projektu. EO kontrola vyu\u017E\u00EDv\u00E1 \u010D\u00E1ste\u010Dn\u00E9ho m\u011B\u0159en\u00ED optick\u00E9ho sign\u00E1lu, elektronick\u00E9 zp\u011Btn\u00E9 \u010Di dop\u0159edn\u00E9 vazby a korekce optick\u00E9ho sign\u00E1lu pomoc\u00ED elektro-optick\u00E9ho modul\u00E1toru. Vyu\u017E\u00EDvaj\u00EDce na\u0161ich p\u0159edch\u00E1zej\u00EDc\u00EDch v\u00FDsledk\u016F a znalost\u00ED na tomto poli, budeme teoreticky studovat chov\u00E1n\u00ED kvantov\u00E9ho \u0161umu v syst\u00E9mech s EO kontrolou, n\u00E1sledn\u011B navrhovat nov\u00E9 experiment\u00E1ln\u011B provediteln\u00E9 metody kontroly a redukce kvantov\u00E9ho \u0161umu a spolupracovat na experiment\u00E1ln\u00EDch demonstrac\u00EDch t\u011Bchto n\u00E1vrh\u016F. Konkr\u00E9tn\u011B bude v\u00FDzkum zam\u011B\u0159en na \u010Dty\u0159i aktu\u00E1ln\u00ED t\u00E9mata: (1) EO kontrola v kvantov\u00FDch pam\u011Btech, (2) nelinearity vy\u0161\u0161\u00EDho \u0159\u00E1du indukovan\u00E1 m\u011B\u0159en\u00EDm, (3) smaz\u00E1v\u00E1n\u00ED kvantov\u00E9ho \u0161umu pomoc\u00ED EO kontroly, (4) EO generace vysoce" . "GA202/08/0224" . "http://www.isvav.cz/projectDetail.do?rowId=GA202/08/0224"^^ . " quantum information" . "25"^^ . "25"^^ . "Electro-optical control of quantum noise of light"@en . . . . "The main result of the project is a collection of new experimentally feasible methods for controlling the quantum noise of light. Some of these methods have been already experimentally tested in collaboration with foreign laboratories possessing the required technology. The main achievements are: (1) proposals and experimental demonstrations of two kinds of conditional noiseless quantum amplifier"@en . . "Hlavn\u00EDm v\u00FDsledkem tohoto projektu je soubor nov\u00FDch experiment\u00E1ln\u011B provediteln\u00FDch metod kontroly kvantov\u00E9ho \u0161umu sv\u011Btla. N\u011Bkter\u00E9 z nich byly ji\u017E v r\u00E1mci projektu testov\u00E1ny experiment\u00E1ln\u011B ve spolupr\u00E1ci s laborato\u0159emi v zahrani\u010D\u00ED, disponuj\u00EDc\u00EDmi pot\u0159ebnou technologi\u00ED. Hlavn\u00ED v\u00FDsledky jsou: (1) n\u00E1vrhy a experiment\u00E1ln\u00ED demonstrace dvou druh\u016F podm\u00EDn\u011Bn\u00FDch bez-\u0161umov\u00FDch kvantov\u00FDch zesil"@cs . "Elekro-optick\u00E1 kontrola kvantov\u00E9ho \u0161umu sv\u011Btla" . . "2015-02-09+01:00"^^ . "0"^^ . "quantum optics; quantum noise; quantum information; kvantov\u00E1 komunikace"@en . . . . "0"^^ . . "1"^^ . "quantum optics" . .