If we measure only the first qubit in the state (1/2) |01⟩ + (i/2) |11⟩, what is the new state after crossing out inconsistent possibilities?
In the field of Quantum Information, specifically in the context of Quantum Entanglement and Systems of two qubits, let us address the question of measuring the first qubit in a given state and determining the resulting state after eliminating inconsistent possibilities. Consider the initial state (1/2) |01⟩ + (i/2) |11⟩, where |0⟩ and |1⟩ represent
- Published in Quantum Information, EITC/QI/QIF Quantum Information Fundamentals, Quantum Entanglement, Systems of two qubits, Examination review
How does the state of a qubit simplify when it is observed or measured?
When a qubit is observed or measured, its state undergoes a simplification process known as wavefunction collapse. This collapse occurs due to the fundamental principles of quantum mechanics and has significant implications for the field of quantum information. In quantum mechanics, a qubit is a two-level quantum system that can exist in a superposition of
What happens to a qubit when it is measured?
When a qubit is measured in the field of quantum information, several interesting phenomena occur. To understand what happens during the measurement process, it is important to have a solid understanding of qubits and their properties. A qubit, short for quantum bit, is the fundamental unit of information in quantum computing. Unlike classical bits, which