Boosted quantum teleportation

Abstract

Quantum teleportation has proven to be fundamental for many quantum information and communication processes. The core concept can be exploited in many tasks, from the transmission of quantum states, quantum repeaters, to quantum computing. However, for linear-optical systems, the efficiency of teleportation is directly linked to the success probability of the involved Bell-state measurement. In most implementations, this is realized by linear optics with an intrinsically limited success probability of 50%. Here, we demonstrate quantum teleportation surpassing this limit. We achieve an average fidelity of the teleported states of $0.8677\pm 0.0024$, leading to an overall acceptance rate of the teleportation of $69.71\pm 0.75\%$. We obtain this boosted success probability by generating ancillary photonic states that are interfered with the Bell states. Thus, our work demonstrates the boosting Bell-state measurements in quantum-technology applications and our scheme could directly be applied to e.g. quantum repeaters.

References in corpus (25)

• Experimental quantum teleportation
• Experimental Realization of Teleporting an Unknown Pure Quantum State via Dual Classical and Einstein-Podolski-Rosen Channels
• Ground-to-satellite quantum teleportation
• Quantum teleportation using active feed-forward between two Canary Islands
• Quantum Teleportation with a Complete Bell State Measurement
• On Bell measurements for teleportation
• Quantum process tomography of a controlled-NOT gate
• Quantum teleportation in high dimensions
• Complete hyperentangled-Bell-state analysis for quantum communication
• Qubit teleportation between non-neighboring nodes in a quantum network
• Maximum efficiency of a linear-optical Bell-state analyzer
• Chip-to-chip quantum teleportation and multi-photon entanglement in silicon
• Quantum teleportation across a metropolitan fibre network
• Experimental high-dimensional quantum teleportation
• A Quantum-Logic Gate between Distant Quantum-Network Modules
• Complete and Deterministic discrimination of polarization Bell state assisted by momentum entanglement
• 3/4-efficient Bell measurement with passive linear optics and unentangled ancillae
• Rate-distance tradeoff and resource costs for all-optical quantum repeaters
• Hertz-rate metropolitan quantum teleportation
• Bell-state measurement exceeding 50% success probability with linear optics
• Fundamental building block for all-optical scalable quantum networks
• Nearly Deterministic Bell Measurement for Multiphoton Qubits and Its Application to Quantum Information Processing
• Investigating the optimality of ancilla-assisted linear optical Bell measurements
• Loss-tolerant transmission of multiphoton-qubit information via hybrid entanglement
• Efficient percolation simulations for lossy photonic fusion networks

Cited by in corpus (5)

• Fusion for High-Dimensional Linear Optical Quantum Computing with Improved Success Probability
• Entanglement swapping in high dimensions with only linear optics
• High-Fidelity Teleportation of Continuous-Variable Quantum States Via Non-Ideal Qutrit Entangled Resources
• Automated Discovery of Non-local Photonic Gates
• Photonic quantum information with time-bins: Principles and applications