241 citations · 2.1k across the 66 of their papers we have counts for
66 papers
The signals of doomsday II: Cosmological signatures of late time symmetry breaking
Amartya Sengupta, Dejan Stojkovic, L. C. R. Wijewardhana
Only two gauge symmetries remain unbroken today: and . Both are crucial to our universe as it is and to our form of life. Unless we are special observers a…
Higher-Dimensional Chirally Stabilized Fixed Points and Their Deformations
Aleksandar Ljepoja, L. C. R. Wijewardhana, Yashar Komijani
Non-Fermi liquids in remain poorly understood, particularly when relevant perturbations destabilize them. In one spatial dimension, chirally stabilized fixed points provide a…
Dynamics of Inspiraling Dark Energy
Lilia Anguelova, John Dumancic, Richard Gass +1
We investigate the dynamics of a multifield dark energy model, which arises from certain rapid-turning and inspiraling trajectories in field space. We find the speed of sound …
WKB approximation to boson dark matter
Lauren Street, Peter Suranyi, L. C. R. Wijewardhana
Galactic dark matter halos may be composed of ultralight axions (ULAs) ( eV) with wave functions that satisfy nonlinear Schrödinger-Poisson equations (SPA). We find…
Testing multiflavored ULDM models with SPARC
Lauren Street, Nickolay Y. Gnedin, L. C. R. Wijewardhana
We perform maximum likelihood estimates (MLEs) for single and double flavor ultralight dark matter (ULDM) models using the Spitzer Photometry and Accurate Rotation Curves (SPARC) d…
Dark Energy from Inspiraling in Field Space
Lilia Anguelova, John Dumancic, Richard Gass +1
We find an exact solution of the equations of motion of a two-field cosmological model, which realizes multi-field dark energy. The latter is characterized by field-space trajector…