---
title: Unitary causal quantum stochastic double products as universal interactions I
date: 2015-04-01
template: oldpost
comments: true
archive: false
---
In [this paper](http://www.actaphys.uj.edu.pl/findarticle?series=Reg&vol=46&page=1851) with [Robin](http://homepages.lboro.ac.uk/~marh3/) we show the explicit formulae for a family of unitary
triangular and rectangular double product integrals which can be
described as second quantisations.