Physics, 21.09.2019 19:20, ghari112345
The hamiltonian of a spin in a magnetic field is given by a(bbysy+b, s), where α and the three components of b are all constants. (a) compute the energies and corresponding eigenstates of this system (b) let by-0 and b = 0. (i) use the energies and eigenstates for this case to determine the time evolution ψ(t) of a state with initial condition ψ(0) (ii) calculate the expectation values 〈s) and (s) as a function of tine. (iii) use a taylor expansion to show that the time-evolution operator u(t) exp(-iht/h) can be written as (e)s()i - isin(ut)x, where i is the identity operator, x (2/h)s, and w ab/2. hint: use the pauli matrix representation of the spin operator and show that
Answers: 2
Physics, 22.06.2019 07:30, sansyboy7891
Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.
Answers: 2
Physics, 22.06.2019 21:00, cathydaves
During a car accident, a 125kg driver is moving at 31m/s and in 1.5s is brought to rest by an inflating air bag. what is the magnitude of the change in momentum to the driver
Answers: 2
Physics, 22.06.2019 21:30, itaheart101
What ia the energy of an object because of its potential and kinetic energies
Answers: 1
The hamiltonian of a spin in a magnetic field is given by a(bbysy+b, s), where α and the three compo...
Mathematics, 08.09.2019 12:10
History, 08.09.2019 12:10
Biology, 08.09.2019 14:10
Mathematics, 08.09.2019 14:10