Research output: Contribution to journal › Article
Towards an explicit construction of local observables in integrable quantum field theories. / Bostelmann, Henning; Cadamuro, Daniela.
In: Annales Henri Poincare, Vol. 20, No. 12, 26.11.2019, p. 3889-3926.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Towards an explicit construction of local observables in integrable quantum field theories
AU - Bostelmann, Henning
AU - Cadamuro, Daniela
N1 - © The Author(s) 2019
PY - 2019/11/26
Y1 - 2019/11/26
N2 - We present a new viewpoint on the construction of pointlike local fields in integrable models of quantum field theory. As usual, we define these local observables by their form factors; but rather than exhibiting their n-point functions and verifying the Wightman axioms, we aim to establish them as closed operators affiliated with a net of local von Neumann algebras, which is defined indirectly via wedge-local quantities. We also investigate whether these fields have the Reeh-Schlieder property, and in which sense they generate the net of algebras. Our investigation focuses on scalar models without bound states. We establish sufficient criteria for the existence of averaged fields as closable operators, and complete the construction in the specific case of the massive Ising model.
AB - We present a new viewpoint on the construction of pointlike local fields in integrable models of quantum field theory. As usual, we define these local observables by their form factors; but rather than exhibiting their n-point functions and verifying the Wightman axioms, we aim to establish them as closed operators affiliated with a net of local von Neumann algebras, which is defined indirectly via wedge-local quantities. We also investigate whether these fields have the Reeh-Schlieder property, and in which sense they generate the net of algebras. Our investigation focuses on scalar models without bound states. We establish sufficient criteria for the existence of averaged fields as closable operators, and complete the construction in the specific case of the massive Ising model.
U2 - 10.1007/s00023-019-00847-7
DO - 10.1007/s00023-019-00847-7
M3 - Article
VL - 20
SP - 3889
EP - 3926
JO - Annales Henri Poincare
JF - Annales Henri Poincare
SN - 1424-0661
IS - 12
ER -