CESAR

The CESAR Optical Computing and Quantum Communications Lab currently utilizes two lasers: the Innova Sabre and the Mira 900-F Ti: Sapphire, both manufactured by Coherent. The Innova Sabre has an Argon Ion laser option, which has a maximum of 32 W and 514 nm. The Ti: Sapphire has a maximum of 10 KW, 1000 nm, and 200 fs pulse. The two lasers are used together, and as such, they are a pulsed Class IV laser.

source: APS

In the new CESAR Optical Computing Lab, ORNL researchers are exploring the possibility of transferring quantum information between arbitrarily remote locations (i.e., quantum teleportation).

Entanglement is the key to this new realm of quantum phenomena, and offers solid prospects for implementing

• secure (quantum) cryptography,
• quantum-computing algorithms, and
• quantum teleportation.

In some sense, quantum teleportation implies "faster-than-light" (FTL) communication, where no energy or particles are travelling faster than light, but the wave function is.

By exploiting the delicate quantum phenomena that have no classical analogues, it is possible to do certain computational tasks much more efficiently than with any classical computer. These quantum phenomena allow performance of unprecedented tasks such as breaking "unbreakable" codes, generating true random numbers, and communicating with messages that betray the presence of eavesdropping.