657 citations · 5k across the 59 of their papers we have counts for
60 papers
Holographic Lifshitz flows
Matteo Baggioli, Oriol Pujolas, Xin-Meng Wu
Without Lorentz symmetry, generic fixed points of the renormalization group (RG) are labelled by their dynamical (or `Lifshitz') exponent . Hence, a rich variety of possible RG…
Oscillon spectroscopy
Fabio van Dissel, Oriol Pujolas, Evangelos Sfakianakis
The sine-Gordon model in 3+1 dimensions is known to admit two oscillons of different energy and frequency but comparable lifetime. We show that the oscillon spectrum includes more…
Domain wall annihilation -- a QFT perspective
Oriol Pujolas, George Zahariade
Domain wall networks in the early universe, formed upon spontaneous breaking of a discrete symmetry, have a rich impact on cosmology. Yet, they remain somewhat unexplored. We intro…
Gravitational Waves from Domain Walls in Pulsar Timing Array Datasets
Ricardo Z. Ferreira, Alessio Notari, Oriol Pujolas +1
We present a model-independent search for the gravitational wave background from cosmic domain walls (DWs) in the NANOGrav 12.5 years dataset and International PTA Data Release 2.…
Search for a scalar induced stochastic gravitational wave background in the third LIGO-Virgo observing run
Alba Romero-Rodriguez, Mario Martinez, Oriol Pujolàs +2
Formation of primordial black holes from inflationary fluctuations is accompanied by a scalar induced gravitational wave background. We perform a Bayesian search of such background…
High Quality QCD Axion at Gravitational Wave Observatories
Ricardo Z. Ferreira, Alessio Notari, Oriol Pujolàs +1
The axion solution to the strong CP problem is delicately sensitive to Peccei-Quinn breaking contributions that are misaligned with respect to QCD instantons. Heavy QCD axion model…