What are the basic principles of quantum cryptography?

What are the basic principles of quantum cryptography?

Quantum cryptography uses the principles of quantum mechanics to secure communication. The key concepts include superposition, entanglement, and the no-cloning theorem.

How does superposition work in quantum cryptography?

Superposition allows quantum bits (qubits) to exist in multiple states at once, enabling more complex information encoding and secure key distribution.

What is the no-cloning theorem?

The no-cloning theorem states that it is impossible to create an identical copy of an arbitrary unknown quantum state, which enhances security.

Can you explain entanglement in simple terms?

Entanglement is a phenomenon where two qubits become linked, so the state of one instantly influences the state of the other, regardless of distance.

What are the practical applications of quantum cryptography?

Practical applications include secure communication channels, banking security, and protecting sensitive data from eavesdropping.