Quantum Teleportation of Information with Diamonds
By Anneli, Kara
The proposed research aims to explore the ability to teleport information into macroscopic diamonds to be then sent to a seperate output source. Adding onto an experiment by Hou et al., we will send femtosecond laser pulses from a Ti–sapphire laser into a diamond to produce a Stokes photon, which is an excitation in the phonon mode. We will then prepare an input state on the photon’s polarization degree of freedom, allowing the photon to carry two qubits, one by its polarization and one by its spatial modes. We will then perform Bell measurements, which will then allow the phonon state to be projected to the same state input as the photon’s polarization. A second ultra fast laser pulse will be applied to the diamond to convert the phonon back to an anti-Stokes photon. The result will then be compared to the original photon’s polarization state [1]. Intellectual Merit: The intellectual merit of this experiment rests on and directly tests the ability to store information as vibrational states within a diamond. Diamonds are used as a good qubit system because of their long coherence for spins [2]. Chaudhary et al. developed theoretical protocols to teleport macroscopic quantum states [3]. By teleporting information into a macroscopic, nitrogen- vacancy diamond, we are working to experiment on a protocol to store information in a diamond in a secure manner. Broader Impact: By successfully using quantum teleportation utilizing a nitrogen-vacancy center, we would create fundamentals for storing information within diamonds for long periods of time as well as develop a safer way to send information through quantum computers. Our research would lay the foundation for further research on large storage methods for quantum computers that are resistant to hacking and other data breaches.