|
Título:
|
Coarse graining the phase space of N qubits
|
|
Autores:
|
Di Matteo, Olivia ;
Sánchez Soto, Luis Lorenzo ;
Leuchs, G. ;
Grassl, M.
|
|
Tipo de documento:
|
texto impreso
|
|
Editorial:
|
Amer Physical Soc, 2017-02-28
|
|
Dimensiones:
|
application/pdf
|
|
Nota general:
|
info:eu-repo/semantics/openAccess
|
|
Idiomas:
|
|
|
Palabras clave:
|
Estado = Publicado
,
Materia = Ciencias: Física: Optica
,
Tipo = Artículo
|
|
Resumen:
|
We develop a systematic coarse-graining procedure for systems of N qubits. We exploit the underlying geometrical structures of the associated discrete phase space to produce a coarse-grained version with reduced effective size. Our coarse-grained spaces inherit key properties of the original ones. In particular, our procedure naturally yields a subset of the original measurement operators, which can be used to construct a coarse discrete Wigner function. These operators also constitute a systematic choice of incomplete measurements for the tomographer wishing to probe an intractably large system.
|
|
En línea:
|
https://eprints.ucm.es/42667/1/S%C3%A1nchezSotoLL%2010%20LIBRE.pdf
|
