TY - JOUR
T1 - Vacuum decay in CFT and the Riemann-Hilbert problem
AU - Pimentel, Guilherme L.
AU - Polyakov, Alexander M.
AU - Tarnopolsky, Grigory M.
N1 - Publisher Copyright:
© 2016.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - We study vacuum stability in 1 + 1 dimensional Conformal Field Theories with external background fields. We show that the vacuum decay rate is given by a non-local two-form. This two-form is a boundary term that must be added to the effective in/out Lagrangian. The two-form is expressed in terms of a Riemann-Hilbert decomposition for background gauge fields, and its novel "functional" version in the gravitational case.
AB - We study vacuum stability in 1 + 1 dimensional Conformal Field Theories with external background fields. We show that the vacuum decay rate is given by a non-local two-form. This two-form is a boundary term that must be added to the effective in/out Lagrangian. The two-form is expressed in terms of a Riemann-Hilbert decomposition for background gauge fields, and its novel "functional" version in the gravitational case.
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U2 - 10.1016/j.nuclphysb.2016.03.039
DO - 10.1016/j.nuclphysb.2016.03.039
M3 - Article
AN - SCOPUS:84964402826
SN - 0550-3213
VL - 907
SP - 617
EP - 632
JO - Nuclear Physics B
JF - Nuclear Physics B
ER -