Theories and experiments have shown that the quantum computers of the future will be able to take on the strange features of quantum mechanics by the most powerful supercomputers currently enabled to go above and beyond. These Quantum computers will communicate via Quantum Internet, which is not as easy as plugging in their phone line. An important requirement of quantum computing is that the particles that perform the calculations are involved, a quantum mechanical phenomenon where they become part of a single state. A change in a particle creates an instantaneous change in others no matter how far away it is.
Unfortunately, these entangled states are easily disrupted. So how can they be transmitted for communication between computers? This is where quantum teleportation comes from. The entangled state is moved between two particles. This technique is not quite efficient and scientists are working hard to make the whole process more successful.
A team of researchers from multiple organizations has reported a record-breaking achievement in PRX Quantum. They were able to provide long-distance teleportation of qubits (quantum bits) with more than 90% reliability over a distance of 44 kilometers (27 miles) of a fiber-optic network. Panagiotis Spentzouris, the lead co-author of the Fermilab Quantum Science program, said in a statement, “We are thrilled with these results.” “This is a key achievement on the way to creating a technology that will redefine how our global communications are handled.”
Quantum Teleportation The science fiction of teleportation does not work as popular. What you are teleporting is the state of the particle through the quantum channel and the classical channel. The sender has the original quit. It was created to interact with a particle in an involved pair, creating “classical signal” information about the state of the original quit. This signal and the other half of this involved pair are transmitted to the receiver and by putting it together the receiver can recreate the original quit.
This success is the result of a collaboration between Fermilab, AT&T, Caltech, Harvard University, NASA Jet Propulsion Laboratory, and the University of Calgary. The systems on which this quantum teleportation was achieved were based on Intelligent Quantum Networks and Technologies, or Caltech’s public-private research program at IN-Q-NET.
“We are extremely proud to have achieved this milestone for sustainable, high-performance, and scalable quantum teleportation systems,” explained Maria Spiropulu, Shang-i Chain Professor of Physics at Caltech and director of the IN-Q-Net research program. “The results will be further improved. With the system upgrade, we hope to be able to finish by the second quarter of 2021.” Quantum computers are not here yet, but it is very important for them to have the infrastructure to work. The U.S. Department of Energy released its roadmap for a national quantum Internet last July.
