Quantum memory stores the state of a quantum system, like a qubit, which can be in a superposition of |0⟩ and |1⟩ or entangled with other systems. Unlike classical memory, it must preserve delicate quantum properties without measuring the state, which would collapse it. Quantum memory is crucial for quantum repeaters, quantum computers, and quantum networks, allowing qubits to be held until needed. A challenge is decoherence, where the environment disrupts the quantum state over time.
Try it: Adjust the probability of |1⟩ and storage time using the sliders. Create a qubit, store it in memory, retrieve it, and measure it. Toggle decoherence to see how it affects fidelity.
Qubit State: Not created
Memory: Empty
State Fidelity: N/A