Spherically symmetric solutions of Einstein + non-polynomial gravities (2007)
Deser, S., Sarioglu, O., Tekin, B.
We obtain the static spherically symmetric solutions of a class of gravitational models whose additions to the General Relativity (GR) action forbid Ricci-flat, in particular, Schwarzschild...
Shortcuts to Spherically Symmetric Solutions: A Cautionary Note (2004)
Deser, S., Franklin, J., Tekin, B.
Spherically symmetric solutions of generic gravitational models are optimally, and legitimately, obtained by expressing the action in terms of the two surviving metric components. This shortcut is...
Deconfinement at N>2: SU(N) Georgi-Glashow model in 2+1 dimensions (2001)
Kogan, I I, Kovner, A, Tekin, B
We analyse the deconfining phase transition in the SU(N) Georgi-Glashow model in 2+1 dimensions. We show that the phase transition is second order for any N, and the universality class is different...
Complex Monopoles in the Path Integral (1998)
Hosotani, Y., Tekin, B., Saririan, K.
Complex monopole configurations dominate in the path integral in the Georgi-Glashow-Chern-Simons model and disorder the Higgs vacuum. No cancellation is expected among Gribov copies of the monopole...
Complex Monopoles and Gribov Copies (1998)
Hosotani, Y., Saririan, K., Tekin, B.
Complex monopole solutions exist in the three dimensional Georgi-Glashow model with the Chern-Simons term. They dominate the path integral and disorder the Higgs vacuum. Gribov copies of the vacuum...
Temperature Dependence of \eta and \eta^{\prime} Masses (1997)
Jalilian-Marian, J., Tekin, B.
We investigate the temperature dependence of \eta and \eta^{\prime} masses due to scatterings from thermal pions in a heat bath using the non-linear sigma model. We show that mass shifts of \eta and...