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Research
# Gravitational Physics & Cosmology

# Gravitational Physics & Cosmology

The gravitational physics effort at Penn State focuses on cosmology, general relativity, gravitational wave astronomy, loop quantum gravity, and string theory. This research effort is centered in the Institute for Gravitation and the Cosmos. Our gravitational physics group was ranked 10th in the most recent US News & World rankings (2014). Further information can be found at the web-page of the Institute for Gravitation and the Cosmos.

**Abhay Ashtekar**, **Eugenio Bianchi**, **Martin Bojowald**, **Viktoriya Giryanskaya**, **Chad Hanna**, **David Radice**, **B.S. Sathyaprakash**, **Sarah Shandera**.

Gravitational Physics & Cosmology.

Loop quantum gravity, black holes, primordial cosmology, entanglement.

Classical and quantum structure of space-time, early-universe cosmology, black holes, quasiclassical approximations, algebraic and non-associative quantum mechanics.

Gravitational-wave astrophysics, multimessenger astrophysics, compact binary systems, LIGO, computation, data science.

Numerical relativity, multimessenger astrophysics, relativistic astrophysics.

Gravitational wave sources and science, strong ﬁeld tests of general relativity, black holes and quasi-normal modes.

Early universe cosmology, primordial gravitational waves, dark matter, cosmological structures, open quantum systems.