b. 1973
Martin Bojowald is a theoretical physicist and cosmologist at Penn State University, best known for founding Loop Quantum Cosmology (LQC). His work extends Loop Quantum Gravity into cosmological settings, replacing the classical Big Bang singularity with a quantum 'Big Bounce' in which the universe contracts and re-expands. His research carries significant implications for philosophy of cosmology, particularly debates about creation, time, and the causal structure of the universe's origin.
Founded Loop Quantum Cosmology (LQC), a quantization of cosmological spacetimes
Developed the Big Bounce model, replacing the Big Bang singularity with a quantum transition from a prior contracting phase
Demonstrated that quantum geometry effects can resolve classical cosmological singularities
Authored 'Once Before Time' (2010), a philosophical-scientific account of pre-Big-Bang cosmology
Contributed to debates on whether the universe requires an absolute beginning, with implications for cosmological arguments for theism