10.1k citations · 13.3k across the 91 of their papers we have counts for
92 papers
Lars Brink and SIC_POVMs
Ingemar Bengtsson
The notion of SIC-POVMs comes from quantum information theory, and they were not on the horizon when I was Lars Brink's student in the early 80s. In the summer of 2022 I told Lars…
Bogdan Mielnik, geometry and quanta
Ingemar Bengtsson, Karol Zyczkowski
We review selected achievements of the late Bogdan Mielnik in the field of theoretical physics, with an emphasis on his attempts to go beyond quantum mechanics. Some of his origina…
Dimension towers of SICs. II. Some constructions
Ingemar Bengtsson, Basudha Srivastava
A SIC is a maximal equiangular tight frame in a finite dimensional Hilbert space. Given a SIC in dimension , there is good evidence that there always exists an aligned SIC in di…
Energy in Newtonian gravity
Ingemar Bengtsson, Tobias Eklund
In Newtonian gravity it is a moot question whether energy should be localized in the field or inside matter. An argument from relativity suggests a compromise in which the contribu…
SIC-POVMs from Stark units: Prime dimensions n^2+3
Marcus Appleby, Ingemar Bengtsson, Markus Grassl +2
We propose a recipe for constructing a SIC fiducial vector in complex Hilbert space of dimension of the form , focussing on prime dimensions . Such structures are sho…
Compounds of symmetric informationally complete measurements and their application in quantum key distribution
Armin Tavakoli, Ingemar Bengtsson, Nicolas Gisin +1
Symmetric informationally complete measurements (SICs) are elegant, celebrated and broadly useful discrete structures in Hilbert space. We introduce a more sophisticated discrete s…