A logical operation that can be performed on a quantum bit.

A physical device that implements a quantum gate.

A mathematical representation of a quantum gate.

A type of quantum circuit.

The Hadamard gate.

The CNOT gate.

The Toffoli gate.

The SWAP gate.

A two-qubit gate that flips the target qubit if the control qubit is in the (|1\rangle) state.

A two-qubit gate that flips the control qubit if the target qubit is in the (|1\rangle) state.

A two-qubit gate that swaps the states of the two qubits.

A two-qubit gate that measures the states of the two qubits.

A three-qubit gate that flips the target qubit if the two control qubits are both in the (|1\rangle) state.

A three-qubit gate that flips the control qubits if the target qubit is in the (|1\rangle) state.

A three-qubit gate that swaps the states of the three qubits.

A three-qubit gate that measures the states of the three qubits.

A two-qubit gate that swaps the states of the two qubits.

A two-qubit gate that measures the states of the two qubits.

A two-qubit gate that flips the target qubit if the control qubit is in the (|1\rangle) state.

A two-qubit gate that flips the control qubit if the target qubit is in the (|1\rangle) state.

To perform operations on quantum bits.

To build quantum circuits.

To measure the states of quantum bits.

All of the above.

Using physical devices such as superconducting qubits.

Using mathematical operations.

Using a combination of physical devices and mathematical operations.

None of the above.

The need for high-quality qubits.

The difficulty of controlling the interactions between qubits.

The decoherence of qubits.

All of the above.

Quantum computing.

Quantum cryptography.

Quantum teleportation.

All of the above.

Quantum gates can operate on multiple qubits at the same time.

Quantum gates can perform operations that are impossible for classical gates.

Quantum gates are reversible.

All of the above.

Quantum gates will be used to build quantum computers that will solve problems that are impossible for classical computers.

Quantum gates will be used to develop new quantum technologies such as quantum cryptography and quantum teleportation.

Quantum gates will be used to explore the fundamental laws of physics.

All of the above.

A sequence of quantum gates.

A graphical representation of a quantum circuit.

A mathematical model of a quantum circuit.

All of the above.

To design quantum algorithms.

To simulate quantum systems.

To optimize quantum circuits.

All of the above.

The need for high-quality qubits.

The difficulty of controlling the interactions between qubits.

The decoherence of qubits.

All of the above.

Quantum computing.

Quantum cryptography.

Quantum teleportation.

All of the above.