26 citations · 52 across the 9 of their papers we have counts for
6 papers · 1 filter
Is the finite temperature effective potential, effective for dynamics?
Nathan Herring, Shuyang Cao, Daniel Boyanovsky
We study the applicability of the finite temperature effective potential in the equation of motion of a homogeneous "misaligned" scalar condensate , and find important caveats t…
Is the effective potential, effective for dynamics?
Nathan Herring, Shuyang Cao, Daniel Boyanovsky
We critically examine the applicability of the effective potential within dynamical situations and find, in short, that the answer is negative. An important caveat of the use of an…
Effective field theory of particle mixing
Shuyang Cao, Daniel Boyanovsky
We introduce an effective field theory to study \emph{indirect} mixing of two fields induced by their couplings to a common decay channel in a medium. The extension of the method o…
Chern Simons condensate from misaligned axions
Shuyang Cao, Daniel Boyanovsky
We obtain the non-equilibrium condensate of the Chern Simons density induced by a misaligned homogeneous coherent axion field in linear response. The Chern-Simons dynamical suscept…
Dynamics of axion-neutral pseudoscalar mixing
Shuyang Cao, Wenjie Huang, Daniel Boyanovsky
Axions mix with neutral pions after the QCD phase transition through their common coupling to the radiation bath via a Chern-Simons term, as a consequence of the anomaly. Th…
Brownian Axion-like particles
Shuyang Cao, Daniel Boyanovsky
We study the non-equilibrium dynamics of a pseudoscalar axion-like particle (ALP) weakly coupled to degrees of freedom in thermal equilibrium by obtaining its reduced density matri…