Quantum Computing Architectures 2022/1

A propagator of a qubit is a 2x2 matrix that is ...

• hermitian

• symmetric

• unitary

• orthogonal

The Hamiltonian of a qubit is a 2x2 matrix that is ...

• hermitian

• symmetric

• unitary

• orthogonal

How many angles are needed to specify the wave function of a qubit?

• 1

• 3

• 5

• 7

What is the dimension of the Hilbert space of a 4-qubit system?

• 4

• 8

• 12

• 16

Which gate creates a superposition of computational basis states from the state |0> ?

• X

• Y

• Z

• Hadamard

Which Pauli matrix is purely imaginary?

Which quantum gate can be represented by a classical truth table?

• Y

• CNOT

• square root of SWAP

• Hadamard

How many classical single-bit gates exist?

• 1

• 2

• 3

• 4

What is the "oracle" in Deutsch's problem?

• an infotech corporation

• an old lady

• a function

• a differential operator

The Deutsch-Jozsa algorithm was covered in the lecture because it..

• illustrates exponential quantum speedup

• can be used in quantum cryptography

• can be used against classical cryptography (RSA)

• was invented by Hungarians