Discrete coherent and squeezed states of many-qudit systems

Abstract

We present a method for orientation-selective enhancement of the first derivatives of an image. The proposed method is based on the polarization properties of the twisted-nematic liquid-crystal displays (LCDs). LCDs are manufactured to work between a polarizer-analyzer pair, and for a given incident polarization direction, the image contrast will depend on the analyzer orientation. In particular, two analyzer orientations of interest could be identified for the proposed experiments: one that reproduces the image displayed on the LCD, and the other one (orthogonal to the former) that gives a negative (contrast reversed) replica of the original image. By placing a beamsplitter after the LCD, two images are spatially separated, analyzed by linear polarizers in perpendicular directions, and then slightly displaced. When the original image and its displaced (contrast reverted) replica are imagined together across a plane, one obtains a resultant image with enhanced first derivatives along a specific direction. Unlike the usual Fourier (coherent) image processing, the technique proposed here works with incoherent illumination. Validation experiments are presented. " 2010 Elsevier B.V. All rights reserved.",,,,,,"10.1016/j.optcom.2010.03.051",,,"http://hdl.handle.net/20.500.12104/40672","http://www.scopus.com/inward/record.url?eid=2-s2.0-77955944064&partnerID=40&md5=19e991201e9c26ae3b408d416e8dbbcd",,,,,,"14",,"Optics Communications",,"2803

2806",,"283",,"Scopus

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PERIODICA",,,,,,,,"Psicología experimental",,"Adquisición y transferencia de una discriminación condicional del primer orden en distintos modos de lenguaje",,,,"journalArticle", "35022","123456789/35008",,"Univ Guadalajara, CUCS, Dept Mol Biol & Genom, Inst Mol Biol & Gene Therapy, Guadalajara 44430, Jalisco, Mexico; Civil Hosp Guadalajara, OPD, Guadalajara, Jalisco, Mexico",,"Marquez, AL

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MEDLINE",,,,,,"Index Medicus;Administration, Oral;Adult;Blood Glucose/me [Metabolism];Body Mass Index;Carnitine/ad [Administration & Dosage];Diabetes Mellitus, Type 2/bl [Blood];Diabetes Mellitus, Type 2/me [Metabolism];Double-Blind Method;Female;Glucose Clamp Technique;Humans;Insulin/bl [Blood];Insulin/me [Metabolism];Lipids/bl [Blood];Male;Middle Aged;Statistics, Nonparametric;Vitamin B Complex/ad [Administration & Dosage]",,,,,,"Effect of oral L-carnitine administration on insulin sensitivity and lipid profile in type 2 diabetes mellitus patients",,"Article" "38665","123456789/35008",,,,"Gómez Camelo, Isabel Victoria",,"2011",,"Las reservas de biosfera son un instrumento para la conservación que busca la armonización de las prácticas humanas con el entorno. A pesar de los avances, la implementación de las reservas aún enfrenta dificultades. A partir de la revisión del proceso de consolidación de la Reserva de Biosfera El Tuparro en la Orinoquía colombiana y con base en el análisis contextual de las reservas de biosfera y áreas protegidas en Latinoamérica, se discuten los retos que enfrenta para lograr el cumplimiento de sus objetivos. Se resalta la visión de la reserva como un esquema de ordenamiento ambiental que debe buscar la articulación de los diferentes actores sociales involucrados, para el mantenimiento de los atributos ecológicos, culturales y productivos de la zona. La comunicación y la participación local son aspectos que deben ser considerados para que la conservación de los ecosistemas sea una decisión consistente y legítima, que busque beneficios para los pobladores y para la naturaleza.",,,,,,,,"0121-7607","http://hdl.handle.net/20.500.12104/36886","http://revistas.javeriana.edu.co/index.php/ambienteydesarrollo/article/view/3167/2409; http://132.248.9.1:8991/F/T2YHQN5JKYSPCIP3SAPK3TB1KGTDDEFCSVNH496MXCXGEJUB2B-01902?func=full-set-set&set_number=025047&set_entry=000235&format=999",,"Español",,,,"29",,"Ambiente y desarrollo (Bogotá)",,"43-64",,"15",,"CLASE

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Mendizábal, E. M., Universidad de Guadalajara. Facultad de Ciencias Químicas",,"CANCHEESCAMILLA, G

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Sanchez-Soto, L.L.",,"2009",,"We consider the phase space for n identical qudits (each one of dimension d, with d a primer number) as a grid of dn × dn points and use the finite Galois field GF (dn) to label the corresponding axes. The associated displacement operators permit to define s -parametrized quasidistributions on this grid, with properties analogous to their continuous counterparts. These displacements allow also for the construction of finite coherent states, once a fiducial state is fixed. We take this reference as one eigenstate of the discrete Fourier transform and study the factorization properties of the resulting coherent states. We extend these ideas to include discrete squeezed states, and show their intriguing relation with entangled states of different qudits. " 2009 The American Physical Society.