[quantum-info] QI seminar today, 4 pm time room

[Markus Mueller]

Dear all,

this is a reminder that Maarten van den Nest will be giving the quantum 
information seminar at PI today. See the title and abstract below.

Best wishes,
Markus



Title: *A monomial matrix formalism to describe quantum many-body states*
Speaker: Maarten van den Nest (Max Planck Institute for Quantum Optics, 
Garching/Munich, Germany)

Abstract:
We propose a framework to describe and simulate a class of many-body 
quantum states. We do so by considering joint eigenspaces of sets of 
monomial unitary matrices, called "M-spaces"; a unitary matrix is 
monomial if precisely one entry per row and column is nonzero. We show 
that M-spaces encompass various important state families, such as all 
Pauli stabilizer states and codes, the AKLT model, Kitaev's anyon 
models, W states and several others. We furthermore demonstrate how 
basic properties of M-spaces can transparently be understood by 
manipulating their monomial stabilizer groups. Finally we show that a 
large subclass of M-spaces can be simulated efficiently classically with 
one unified method. [cf. M. Van den Nest, http://arxiv.org/abs/1108.0531]

Date: Monday, April 16, 2012 - 4:00 pm
Series: Perimeter Institute Quantum Information Seminar
Location: *Time Room*


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