activity
20102016
most citedThe Gelfand spectrum of a noncommutative C*-algebra: a topos-theoretic approach

34 citations · 56 across the 5 of their papers we have counts for

collaborators

6 papers

quant-ph2016

Obituary for a Flea

Jasper van Heugten, Sander Wolters

The Landsman-Reuvers proposal to solve the measurement problem from within quantum theory is extensively analysed. In favor of proposals of this kind, it is shown that the standard…

math-ph2013★ 5 cited

Independence Conditions for Nets of Local Algebras as Sheaf Conditions

Sander A. M. Wolters, Hans Halvorson

We apply constructions from topos-theoretic approaches to quantum theory to algebraic quantum field theory. Thus a net of operator algebras is reformulated as a functor that maps r…

math.CT2013★ 3 cited

Gelfand spectra in Grothendieck toposes using geometric mathematics

Bas Spitters, Steven Vickers, Sander Wolters

In the (covariant) topos approach to quantum theory by Heunen, Landsman and Spitters, one associates to each unital C*-algebra, A, a topos T(A) of sheaves on a locale and a commuta…

math-ph2013★ 6 cited

Topos Models for Physics and Topos Theory

Sander A. M. Wolters

What is the role of topos theory in the topos models for quantum theory as used by Isham, Butterfield, Doring, Heunen, Landsman, Spitters and others? In other words, what is the i…

math-ph2010★ 34 cited

The Gelfand spectrum of a noncommutative C*-algebra: a topos-theoretic approach

Chris Heunen, Nicolaas P. Landsman, Bas Spitters +1

We compare two influential ways of defining a generalized notion of space. The first, inspired by Gelfand duality, states that the category of 'noncommutative spaces' is the opposi…

math-ph2010★ 8 cited

A Comparison of Two Topos-Theoretic Approaches to Quantum Theory

Sander Wolters

The aim of this paper is to compare the two topos-theoretic approaches to quantum mechanics that may be found in the literature to date. The first approach, which we will call the…