Posted by **qwerty** on Sunday, February 17, 2013 at 4:18pm.

Suppose we have two qubits in the state α|00⟩+β|11⟩.

(a) If we measure the fi rst qubit in the sign basis, what is the probability of seeing a +?

(b) What is the resulting state of the second qubit in that case?

- Quantum Physics -
**Anonymous**, Sunday, February 17, 2013 at 9:13pm
a) 1/2

b)a,b

## Answer This Question

## Related Questions

- Physics - Suppose we have two qubits in the state α|00⟩+β|11&#...
- Physics - Suppose we have two qubits in the state α|00⟩+β|11&#...
- quantum mechanics - Suppose we have a qubit in the state |ψ⟩=12|0&#...
- Physics - A two-qubit system was originally in the state 34|00⟩−5&#...
- physics - Alice has a very important piece of information, which is encoded as ...
- physics - Suppose we have two qubits in the state (a|0⟩+b|1⟩)|0&#...
- Physics - Suppose we have a qubit in the state |ψ⟩. We know that if ...
- Quantum Physics - Suppose Alice starts with two qubits in the Bell state (1/&#...
- physics - 1] What is ZX applied to |0>? 2] What is ZX applied to H|0>? 3] ...
- Physics - A two-qubit system was originally in the state 34|00⟩−5&#...

More Related Questions