Quantum storage in quantum ferromagnets

Understand

We must protect inherently fragile quantum data to unlock the potential of quantum technologies.

• A pertinent concern in schemes for quantum storage is their potential for near-term implementation.
• Since Heisenberg ferromagnets are readily available, we investigate their potential for robust quantum storage.
• We propose to use permutation-invariant quantum codes to store quantum data in Heisenberg ferromagnets, because the ground space of any Heisenberg ferromagnet must be symmetric under any permutation of the underlying qubits.