I am interested in understating the laws of nature and how they manifest themselves in the evolution of the universe (and in eventually forming things like life). After exploring a few areas of physics and astronomy, I have decided to focus my research in theoretical cosmology. Currently, with my advisor Benjamin Wandelt we are studying the early universe (inflation, cyclic model ...??) using the cosmic microwave background (CMB) temperature and polarization information.

Research Papers:

A.P.S Yadav and B. D. Wandelt, "Detection of primordial non-Gaussianity (fNL) in the WMAP 3-year data at above 99.5% confidence", Phys. Rev. Lett. 100,181301 (2008)
e-print: arxiv/0712.1148

A.P.S Yadav, E. Komatsu, B. D. Wandelt, M. Liguori, F. K. Hansen, and S. Matarrese, "Fast Estimator of Primordial Non-Gaussianity from Temperature and Polarization Anisotropies in the Cosmic Microwave Background II: Partial Sky Coverage and Inhomogeneous Noise", Astrophysical Journal, 678, 578-582 (2008).
e-print: arxiv/0711.4933

M. Liguori, A.P.S. Yadav, F. K. Hansen, E. Komatsu, S. Matarrese, and B. D. Wandelt, "Temperature and polarization CMB maps from primordial non-Gaussianities of the local type", Physical Review D, 76, 105016 1-10 (2007 November 15).
e-print: arxiv/0708.3786

A.P.S. Yadav, E. Komatsu , and B. D. Wandelt, "Fast Estimator of Primordial Non-Gaussianity from Temperature and Polarization Anisotropies in the Cosmic Microwave Background", Astrophysical Journal, 664, 680-686 (2007).
e-print: astro-ph/0701921

A.P.S. Yadav and B. D. Wandelt, "CMB tomography: Reconstruction of adiabatic primordial scalar potential using CMB temperature and polarization maps", Phys. Rev. D 71, 123004 (2005).
e-print: astro-ph/0505386

Leptogenesis: A mechanism for generating matter antimatter asymmetry pdf

Popular Magazines Citing My Work:

Nature

ScienceNow

New Scientist


Invited Talks and Colloquium:

"Theoretical Astrophysics Seminar, at Fermilab" (Jan 7, 2008)

"Physics & Astronomy, Johns Hopkins University" (Jan 25, 2008)

"Theoretical Astrophysics and Relativity Seminars, at California Institute of Technology" (Feb 29, 2008)


Contributed Talks and Posters:

"Great Lakes Cosmology Workshop" at Ohio State University, Columbus, OH (May 31-June 3, 2007)
      Talk title & date : Measuring primordial non-Gaussianity using CMB temperature and polarization data (June 1, 2007)

"Journal Club Talk" at University of Illinois, Urbana-Champaign, IL
      Talk title & date : Inflation and non-Gaussianity from inflation (Nov 17, 2006)

"Inflation after WMAP" workshop at Michigan Center for Theoretical Physics, Ann Arbor, MI (May 18-20, 2006)
      Talk title & date : A New Way of Probing the Early Universe (May 20, 2006)

2006 American Physical Society April Meeting, Dallas, TX (April 22-25, 2006)
      Talk title & date: Reconstructing the Primordial perturbations using CMB data (April 23, 2006)

" Kavli Institute Inaugural Symposium in Honor of David Schramm", Chicago, IL (Dec 8-13, 2005).
      Poster title: Probing the Cosmological Initial Conditions

Summer Schools and Conferences attended

"External Correlations of the CMB and Cosmology" workshop at Fermilab, Batavia, IL (May 25-27, 2006)

"Great Lakes Cosmology VII" workshop at University of Michigan, Ann Arbor, MI (May 13-18, 2003)

Santa Fe Cosmology Summer Workshop (July 7 - 25, 2003)

"Cosmology, Particles and Strings" summer school at IAS Princeton (June 30-July 11, 2003)

Useful External Links & Resources:

CMBFAST , HEALPIX , LAMBDA , Numerical Recipes

UIUC : Astronomy , Physics , Cosmology , CTA , Dark Energy

ADS , Arxiv , WMAP , NCSA

Educational: CERN , Particle Adventure , More