Cavity Quantum Electrodynamics with Landau Quantized Graphene
Abstract
We attempt to see if strong coupling between a quantum electromagnetic field and Landau quantized (LQ) graphene is achievable. LQ graphene acts as a collection of two-level quantum bits (qubits). This coupling between field and qubits gives rise to Rabi oscillations between the two energy levels of the qubits. The cavity we are using to confine the optical field is a photonic crystal cavity with a 2D sheet of graphene sitting between two layers of hexagonal boron nitride (hBN) with distributed Bragg reflectors (DBRs) on the outside acting as mirrors. A better understanding would make it possible for devices to be constructed that implement new principles of telecommunications and computing. For example, quantum computers utilize qubits constructed of the superposition of quantum states instead of classical bits based on electric charge. Quantum computing promises drastic increase in memory density and computation speed. Communications based on the exchange of quantum states of light are inherently secure, because any eavesdropping attempt will destroy the quantum state.
Citation
Throm, Maxwell Evans (2021). Cavity Quantum Electrodynamics with Landau Quantized Graphene. Undergraduate Research Scholars Program. Available electronically from https : / /hdl .handle .net /1969 .1 /200631.