I am a co-founder of PhysicsOverflow (www.physicsoverflow.org), where I am mostly active these days.
15 How exactly does inflation convert random gravity fluctuations into coherent gravitational waves? Mar 24 '14
6 How can the life time of a multiple star system, such as for example the trinary system PSR J0337+1715 be derived? Jan 10 '14
3 What are the concrete technical arguments supporting the idea that the wave function of the universe can be written as partition function? Feb 14 '14
3 What does black hole evaporation correspond to in the accelerating universe / black hole analogy? Feb 13 '14
2 How exactly can the hypothetical conformal invariance of the CMB spectrum be established by analyzing tensor modes? May 3 '14