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A “Schrodinger Cat” Superposition

Saturday, February 27th, 2010

Sandra L. Manulat “Schrodinger’s cat paradox is a classical illustration of the conflict between the existence of quantum superpositions and our real-world experience of observation and measurement”[1]. The Principle of Superposition of States in quantum mechanics has become strikingly successful at describing physical phenomena at the atomic scale.  Quantum superposition requires us to assume that […]

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Addition of Angular Momenta

Thursday, February 11th, 2010

Sandra Manulat and Michael Jabines Consider two spin 3/2 particles at the ground state. Suppose that their total spin is 2 with its z-component equal to zero. If you measure [eq]J_z[/eq] on the second particle, what values would you get and the probabilities of measuring such? In order to answer the problem, we first need […]

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