physics

posted by .

Suppose we have two qubits in the state (a|0⟩+b|1⟩)|0⟩, to which we apply the following circuit.


(a) Is the resulting state entangled?




Yes

No
(b) Specify the state of each qubit after we applied the circuit.

  • physics -

    what circuit?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. quantum mechanics

    Suppose we have a qubit in the state |ψ⟩=12|0⟩+3√2|1⟩. If we measure this qubit in |u⟩=3√2|0⟩+12|1⟩,|u⊥⟩=−12|0⟩+3√2|1⟩ basis, what is …
  2. Physics

    A two-qubit system was originally in the state 34|00⟩−5√4|01⟩+14|10⟩−14|11⟩, and then we measured the first qubit to be 0. Now, if we measure the second qubit in the standard basis, what …
  3. Physics

    Suppose we have two qubits in the state α|00⟩+β|11⟩. (a) If we measure the first qubit in the sign basis, what is the probability of seeing a +?
  4. Physics

    We have a qubit in the state |ϕ⟩=3√2|0⟩+12|1⟩, which we want to measure in the {cosθ|0⟩+sinθ|1⟩,sinθ|0⟩−cosθ|1⟩} basis. In order for the two possible …
  5. Physics

    Suppose we have two qubits in the state α|00⟩+β|11⟩. (a) If we measure the first qubit in the sign basis, what is the probability of seeing a +?
  6. Quantum Physics

    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 +?
  7. physics

    Alice has a very important piece of information, which is encoded as an integer k. She is storing this number in a quantum state |ψ⟩=∑xαx|x⟩ of n qubits in such a way that if you apply QFT2n to |ψ⟩ …
  8. physics

    Consider the Hamiltonian H=Z⊗3 acting on 3 qubits. What is the ground energy of the system?
  9. Quantum Physics

    Suppose Alice starts with two qubits in the Bell state (1/√2)|00⟩+(1/√2)|11⟩ and teleports these qubits to Bob by applying the quantum teleportation protocol to each qubit separately. (a) What is the state …
  10. quantummechanics

    The following circuit is designed for testing whether |u⟩=|v⟩. The three-qubit gate in the middle is called the controlled SWAP gate, which swaps the last two qubits if and only if the first qubit is 1 (a) If |u⟩=|v⟩=|+⟩, …

More Similar Questions