Photon-Echo Synchronization and Quantum State Transfer in Short Quantum Links

A Delay Differential Equation framework reveals photon-echo-driven synchronization in short quantum links, enabling STIRAP to achieve quadratic infidelity O((γτ)²)—outperforming SWAP and CZKM protocols for γτ≲1.44 on current circuit-QED hardware.

#QuantumNetworking #CircuitQED #Research

High-Fidelity Quantum State Transfer via Two-Parameter Pulse-Shaped Pitch-and-Catch Protocol

A minimal two-parameter (ramp rate + delay) pulse-shaped pitch-and-catch protocol achieves >99.9% quantum state transfer fidelity across single-mode to multimode resonator regimes in circuit-QED and quantum-acoustic systems.

#QuantumNetworking #CircuitQED #Research

Obstacles to Continuous Quantum Error Correction via Parity Measurements

Standard parity-measurement protocols in circuit QED fail for continuous QEC: two-body qubit-meter couplings corrupt logical info via unavoidable measurement backaction. Erasure qubits using only 2-body interactions are the most practical path forward.

#QuantumErrorCorrection #CircuitQED #Research