The statement you provided is partially accurate, but it requires some clarification.
Quantum communication systems can offer enhanced security compared to traditional classical networks. Quantum communication protocols, such as quantum key distribution (QKD), utilize the principles of quantum mechanics to enable secure transmission of encryption keys. Quantum systems leverage the properties of individual photons or quantum states to detect any eavesdropping attempts, providing a higher level of security than classical encryption methods. However, it's important to note that the overall speed of quantum communication systems is not necessarily faster than classical networks. The advantage lies primarily in the security aspect.
Quantum communication does not use photons "rather than computer code." Instead, photons are the carriers of quantum information in quantum communication. Quantum information is encoded onto the properties of photons, such as their polarization or phase, to represent quantum bits or qubits. These qubits can then be manipulated and measured to perform quantum communication tasks.
Regarding the concept of "teleportation" in a quantum internet, it involves the transfer of quantum states, not classical information or data. Quantum teleportation relies on the phenomenon of entanglement, where the quantum states of two or more particles become correlated, regardless of the physical distance between them. By exploiting entanglement, it becomes possible to transfer the state of one qubit to another qubit, effectively teleporting the quantum information. However, it's important to note that this process does not involve the instantaneous transfer of classical information or data over long distances.
In summary, quantum communication systems can provide enhanced security compared to classical networks due to the utilization of quantum properties. Photons serve as carriers of quantum information, and quantum teleportation is a mechanism to transfer quantum states using entanglement.