Quantum Computing Tutorial QTYR 2023

Which technology use IBM to create their quantum computers?

• Photons

• NMR

• Superconducting qubits

• Ion traps

Which statement will create a circuit with 2 qubits and 2 classical bits?

• QuantumCircuit((2,2)

• QuantumCircuit(2)

• QCircuit(2,2)

• QuantumCircuit(2,2)

What is the probability of measuring the state |1>?

• 1/5

• 4/5

• 4i/5

• 4/sqrt(5)

Which state represents the following Bloch sphere?

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• 
• 
• 

Which circuit represents this state?

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• 
• 
• 

Which code creates this circuit?

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• 
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• 

How do you NOT obtain an exact result from a quantum circuit?

• sampler = Sampler()

  ...

  sampler.run(qc).result()

• sampler = Sampler()

  ...

  sampler.run(qc, shots=None).result()

• sampler = Sampler()

  ...

  sampler.run(qc, shots=1).result()

• backend = Aer.get_backend('statevector_simulator')

  ...

  backend.run(qc).result()

How many qubits does the largest IBM quantum computer have?

• 33

• 333

• 433

• 412

How do you obtain the quasiprobability distribution from a quantum circuit?

• job.result().quasi_dists[0]

• job.result().qprobs[0]

• job.quasi_dists[0]

• job.result().probs[0]

What is the probability of measuring |0> for this circuit?

• 0

• 1/2

• 1

• 1/sqrt(2)