Improving entanglement purification through coherent superposition of roles
arXiv:2408.00844 · doi:10.22331/q-2025-04-09-1702
Abstract
Entanglement purification and distillation protocols are essential for harnessing the full potential of quantum communication technologies. Multiple strategies have been proposed to approach and optimize such protocols, most however restricted to Clifford operations. In this paper, we introduce a superposed entanglement purification design strategy, leveraging coherent superpositions of the roles of entangled states to enhance purification efficiency, defining a new family of non-Clifford distillation protocols. We demonstrate how this approach can be hierarchically integrated with existing entanglement purification strategies, consistently improving protocols performance.
9 pages, 7 figures
References in corpus (15)
- Secure Quantum Key Distribution
- Topological Quantum Distillation
- Entanglement purification and quantum error correction
- Long-distance entanglement purification for quantum communication
- Entanglement of assistance and multipartite state distillation
- Advances in quantum entanglement purification
- Preparation of distilled and purified continuous variable entangled states
- Low-cost Fredkin gate with auxiliary space
- Distillation of multipartite entanglement by complementary stabilizer measurements
- Fundamental limits on the capacities of bipartite quantum interactions
- Quantum Repeater for W states
- Superposed Quantum Error Mitigation
- Enhancing Quantum Computation via Superposition of Quantum Gates
- Conditions for entanglement purification with general two-qubit states
- Statistical evaluation and optimization of entanglement purification protocols