Mostrar el registro sencillo del objeto digital

dc.contributor.author	M. Avila
dc.creator	M. Avila
dc.date	2009
dc.date.accessioned	2016-03-16T17:17:36Z
dc.date.available	2016-03-16T17:17:36Z
dc.identifier	http://www.redalyc.org/articulo.oa?id=57013233002
dc.identifier.uri	http://hdl.handle.net/20.500.11799/39368
dc.description	The qubit-qubit dipolar interaction arises with the very presence of the nuclear qubits in an all-silicon quantum computer (ASQC). Since such interaction depends on the qubit spatial separation noise is induced on entanglement through a damping contribution to the density matrix. A closed condition of "robustness" against decoherence is found. The term "robustness" is define unambiguosly. The existence of at least two exceptional coherent states is infered. The preparation of such states is within the range of present technological capabilities. Thus, the harmful effects of decoherence coming from the dipolar interaction can be diminished considerably. An approximate condition against decoherence, to leading order in 1/(qubit separation)[3], is derived. By expanding the time evolution operator in a series of Chebyshev polynomials an approximated expression for the density matrix, whose precision is of order 10-4, is also found. From this expression, a next-to-leading order approximation for the condition of robustness against decoherence is derived.
dc.format	application/pdf
dc.language	eng
dc.publisher	Sociedad Mexicana de Física A.C.
dc.relation	http://www.redalyc.org/revista.oa?id=570
dc.rights	openAcess
dc.rights	Revista Mexicana de Física
dc.source	Revista Mexicana de Física (México) Num.6 Vol.55
dc.subject	Física, Astronomía y Matemáticas
dc.subject	All-silicon quantum computer
dc.subject	decoherence
dc.subject	robust
dc.title	Decoherence from qubit-qubit dipolar interaction in an all silicon quantum computer
dc.type	Artículo
dc.provenance	Científica
dc.road	Dorada

Ficheros en el objeto digital

Este ítem aparece en la(s) siguiente(s) colección(ones)

• Artículos publicados en revistas arbitradas de Redalyc.org [4450]
  

Visualización del Documento

Mostrar el registro sencillo del objeto digital