Sharing nonfungible information requires shared nonfungible information
arXiv:1911.09331 · doi:10.3390/quantum1020022
Abstract
We show that sharing a quantum reference frame requires sharing measurement operators that identify the reference frame in addition to operators that measure its state. Observers restricted to finite resources cannot, in general, operationally determine that they share such operators. Uncertainty about whether system-identification operators are shared induces decoherence.
arXiv commentPublished version
References in corpus (11)
- Decoherence, einselection, and the quantum origins of the classical
- Reference frames, superselection rules, and quantum information
- Quantum Darwinism
- Fully device independent quantum key distribution
- Quantum Darwinism: Entanglement, branches, and the emergent classicality of redundantly stored quantum information
- Physics within a quantum reference frame
- How unitary cosmology generalizes thermodynamics and solves the inflationary entropy problem
- How device-independent approaches change the meaning of physical theory
- Quantum Darwinism requires an extra-theoretical assumption of encoding redundancy
- Some Consequences of the Thermodynamic Cost of System Identification
- Investigating the implementation of restricted sets of multiqubit operations on distant qubits: a communication complexity perspective