Professor Christopher Isham
is a theoretical physicist
at Imperial College London
. His main research interests are quantum gravity
and foundational studies in quantum theory
. He was the inventor of the HPO formalism
- an approach to temporal quantum logic. He has done important work on loop quantum gravity
, quantum geometrodynamics
, and is well known as one of the foremost proponents (together with John Baez
) of the utility of category theory
in theoretical physics.
Isham is also something of a spokesman for physics to the general audiences of the world, having
appeared in various widely seen NOVA television programs and also in a film about Stephen Hawking. Physicist Paul Davies has described Isham as "Britain's greatest quantum gravity expert." In addition to his physicist hat, he is a credible philosopher and theologian. He is a practicing Christian.
- Isham, C. J., Physics, Philosophy, and Theology, 1988
- Christopher Isham, "Quantum Theories of the Creation of the Universe," in R. Russell, N. Murphy and C. J. Isham (eds.), Quantum Cosmology and the Laws of Nature (Vatican City: Vatican Press, 1993), p. 74.
- Christopher Isham,"Creation of the Universe as a Quantum Tunnelling Process," in (eds. R. J. Russell et al.), Physics, Philosophyand Theology (Vatican City: Vatican Press, 1988), pp. 375-408.
- Isham, C. J. (1993), “Canonical Quantum Gravity and the Problem of Time”, in L. A. Ibort and M. A. Rodríguez (eds.), Integrable Systems, Quantum Groups, and Quantum Field theories. Dordrecht: Kluwer Academic Publishers, 157-288.
- Isham, C. J. (1994), “Prima Facie Questions in Quantum Gravity”, in Ehlers and Friedrich 25 (1994), 1-21.
- Isham, C. J. (1997), “Structural Issues in Quantum Gravity”, in M. Francaviglia et al. (eds.), Florence 1995, General Relativity and Gravitation, World Scientific.
- Butterfield, Jeremy, and Chris Isham (1999), “On the Emergence of Time in Quantum Gravity”, in Butterfield (1999), 111-168.
- Butterfield, Jeremy, and Christopher Isham (2001), “Spacetime and the Philosophical Challenge of Quantum Gravity”, in Callender and Huggett (2001), 33-89.