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James Hartle has died.
A few years ago I had the pleasure of using his text to teach an undergrad GR course.
A few years ago I had the pleasure of using his text to teach an undergrad GR course.
The thread discusses the passing of James Hartle, a prominent figure in general relativity and quantum cosmology, reflecting on his contributions to the field and his impact as a teacher and mentor. Participants share resources, memories, and tributes related to his work and legacy.
Participants generally agree on Hartle's impact and contributions to physics, but there is no formal debate or disagreement present in the discussion.
Some resources shared may contain varying perspectives on Hartle's work and legacy, but these are not explicitly discussed in detail within the thread.
Readers interested in the history of physics, contributions to general relativity and quantum cosmology, or those looking to remember influential figures in the field may find this discussion valuable.
James Burkett Hartle was a theoretical physicist who made major contributions to our understanding of relativistic stars, black holes, and cosmology. Most of his career, however, was devoted to studying the universe as a quantum system. As a result, he was known as the father of quantum cosmology. He is best known for two seminal papers with Stephen Hawking that introduced two quantum states of fundamental importance: the "Hartle-Hawking vacuum" for matter fields outside a black hole, and the "no-boundary wave function of the universe" for cosmology. Jim (as everyone called him) was a warm and caring person who was genuinely concerned with the success of his students, postdocs, and colleagues. He was generous with his time and helped to foster a culture of a welcoming family among gravitational physicists.
"This memoir is published in the Biographical Memoir Series of the US National Academy of Sciences. 8 pages"