Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - How to differentiate a quantum stochastic cocycle.
AU - Lindsay, J. Martin
N1 - 17 pages, as preprint
PY - 2010/12
Y1 - 2010/12
N2 - Two new approaches to the infinitesimal characterisation of quantum stochastic cocycles are reviewed. The first concerns mapping cocycles on an operator space and demonstrates the role of H\"older continuity; the second concerns contraction operator cocycles on a Hilbert space and shows how holomorphic assumptions yield cocycles enjoying an infinitesimal characterisation which goes beyond the scope of quantum stochastic differential equations.
AB - Two new approaches to the infinitesimal characterisation of quantum stochastic cocycles are reviewed. The first concerns mapping cocycles on an operator space and demonstrates the role of H\"older continuity; the second concerns contraction operator cocycles on a Hilbert space and shows how holomorphic assumptions yield cocycles enjoying an infinitesimal characterisation which goes beyond the scope of quantum stochastic differential equations.
KW - Noncommutative probability
KW - quantum stochastic cocycle
KW - E_0-semigroup
KW - CCR flow
KW - holomorphic semigroup.
M3 - Journal article
VL - 4
SP - 641
EP - 660
JO - Communications on Stochastic Analysis
JF - Communications on Stochastic Analysis
SN - 0973-9599
IS - 4
ER -