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March 1, 2015

March 1, 2015

Posted by **qwerty** on Tuesday, April 16, 2013 at 1:10am.

A)Write M in the standard basis.

B)If M is the Hamiltonian acting on a qubit which is in the state |phy(0)> = |0> at time 0 , what is the state of the qubit at time t ? Assume that you are working in units such that h_bar=1 . You may use e and t in your answer.

C)Now you perform an X measurement on the qubit at time 0 . What is the expected value of your measurement?

D)What if you perform the above measurement at time t=4pi/3 instead? What is the expected value of your measurement?

- Quantum Physics -
**Anonymous**, Tuesday, April 16, 2013 at 9:29amcheck the answers on the question posted by qwerty

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