Ko ia te Ahorangi Eberly o te Physics me te Kaiwhakahaere o te Institute for Gravitational Physics and Geometry i te Whare Wananga o Pennsylvania State. Ko te kaihanga o nga taurangi Ashtekar, ko ia tetahi o nga kaiwhakarewa o te taumaha nui o te porohita me tana waahanga porohita porohita. Kua tuhia e ia etahi whakaahuatanga o te taumaha porohita porohita e waatea ana ki te hunga kaore i te ahupūngao. I te tau 1999, i taea e Ashtekar me ona hoa te tatau i te entropy mo te poka pango, e rite ana ki te matapae 1974 rongonui na Hawking i Oxford. Kua whakaahuahia e te kairangahau matatini a Roger Penrose te huarahi a Ashtekar ki te taumaha nui hei "Te mea nui rawa atu o nga mahi katoa ki te 'antiquising' o te ahupūngao whanui". I tohua a Ashtekar hei mema o te National Academy of Sciences i te marama o Mei 2016.
Te Whare Wānanga o Pennsylvania State