Entanglement of two half-qubits and quantum teleportation

Construct an entangled pair of biorthogonal half-qubits and determine whether such an entangled pair can serve as a quantum resource for implementing quantum teleportation.

Background

The paper develops an algebraic fractionalization in which two biorthogonal half-qubits fuse into an arbitrary pure qubit through signed Vandermonde convolution in a Krein space. The construction is presently demonstrated for separately prepared half-qubits, while the possibility of entangling the fractional constituents is left unresolved. The authors identify this as potentially useful for quantum-information tasks, specifically quantum teleportation.

References

Several questions remain open. First, is it possible to create an entangled two-half-qubit? If we can realize this entangled pair, we might use it as a quantum resource and can apply the quantum teleportation scheme.

Half a qubit: an algebraic fractionalization  (2608.16183 - Chang, 17 Aug 2026) in Section Conclusion