Two-mode Gaussian entangled state generated by correlated emission laser as a resource for continuous-variable...

Area of Science:

• Quantum Information Science
• Quantum Optics
• Quantum Communication

Background:

• Quantum teleportation enables the transfer of quantum states.
• Continuous-variable quantum teleportation utilizes Gaussian entangled states.
• Correlated spontaneous emission laser (CEL) systems generate entangled states.

Purpose of the Study:

• To propose a novel scheme for continuous-variable quantum teleportation.
• To utilize a two-mode Gaussian entangled state from a CEL system as a quantum resource.
• To analyze the teleportation fidelity of squeezed coherent states (SCS).

Main Methods:

• Generating a two-mode Gaussian entangled state using a CEL system.
• Employing a squeezed coherent state (SCS) for the teleportation process.
• Calculating time-dependent teleportation fidelity using the Wigner function formalism.

Main Results:

• The proposed CEL system generates amplified entanglement.
• The fidelity of SCS teleportation is analyzed for various system parameters.
• Optimized teleportation fidelity is achieved through amplified entanglement.

Conclusions:

• The CEL system provides an effective quantum resource for continuous-variable quantum teleportation.
• The proposed scheme demonstrates enhanced fidelity for teleporting squeezed coherent states.
• This work contributes to advancements in quantum information processing and secure communication.