Search results
Results from the WOW.Com Content Network
A Universe from Nothing: Why There Is Something Rather than Nothing is a non-fiction book by the physicist Lawrence M. Krauss, initially published on January 10, 2012, by Free Press. It discusses modern cosmogony and its implications for the debate about the existence of God .
Krauss was born on May 27, 1954, in New York City, but spent his childhood in Toronto.He was raised in a household that was Jewish but not religious. [8] Krauss received undergraduate degrees in mathematics and physics with first-class honours at Carleton University in Ottawa in 1977, and was awarded a Ph.D. in physics at the Massachusetts Institute of Technology in 1982.
The central claim of the book is that the theory of quantum mechanics and the theory of relativity together help us understand how universes could have formed out of nothing. [9] The authors write: Because there is a law such as gravity, the universe can and will create itself from nothing.
Quantum mechanics is a fundamental theory that describes the behavior of nature at and below the scale of atoms. [2]: 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science. Quantum mechanics can describe many systems that classical physics cannot.
Hossenfelder runs an eponymous YouTube channel subtitled "Science with Sabine", [23] and in 2019-2020 published six songs on another channel named "Sabine Hossenfelder [Music Videos]". [24] In August 2022, Hossenfelder released a book titled Existential Physics: A Scientist's Guide to Life's Biggest Questions , published by Viking Press . [ 25 ]
In other words, a quantum channel is just a quantum operation viewed not merely as the reduced dynamics of a system but as a pipeline intended to carry quantum information. (Some authors use the term "quantum operation" to include trace-decreasing maps while reserving "quantum channel" for strictly trace-preserving maps. [1])
The no-hiding theorem provides new insights to the nature of quantum information. For example, if classical information is lost from one system it may either move to another system or can be hidden in the correlation between a pair of bit strings. However, quantum information cannot be completely hidden in correlations between a pair of subsystems.
Fred Alan Wolf (born December 3, 1934) is an American theoretical physicist specializing in quantum physics and the relationship between physics and consciousness.He is a former physics professor at San Diego State University, and has helped to popularize science on the Discovery Channel.