Quantum Learning Machine?
Simulating qubits is no small challenge. Atos’ recent work in modeling noise in quantum systems has allowed simulation of a 41 qubit machine. The anticipated studies with the new device will enable testing of quantum algorithms with artificial intelligence applications. There’s already buyers for the Atos QLM, including the U.S. Oak Ridge National Laboratory, France, and now Austria.
Quantum Communication Communicating Atomic Time
Measuring time is a bit more involved when responsible for, say, Global Positioning Satellite (GPS), timing. A number of scientists are posing the idea of using quantum communication techniques to more accurately – and quickly – transfer atomic time between satellites and other timing systems. It is done through bypassing the classical computer conversions of numbers and data – in a simple sense.
64-Qubit Simulation Successful
With improvements in both superconducting and semiconductor quantum chips, simulating a 50-qubit system using classical computers takes in the region of 16 petabytes of RAM. Chinese researchers have managed to simulate a 64-qubit system with greatly reduced hardware requirements. With such a reduction, realization of other quantum feats stands to be simulated while the world waits…because quantum is coming.
Quantum Computing’s Fit Into Classical Computing
Computer science theorists have been troubled with answering just what problem could a quantum computer solve that a classical computer would ever possibly accomplish. Collaboration between Princeton University and Stanford University theorists believe they have an answer – finally. This piece explores the question: “[We] want to know, where does quantum computing fit into the world of classical complexity theory?”
Reducing Quantum Hardware with “Time Crystals”
Majorana time crystals and non-Abelian anyons have been shown to be ‘braidable’, sharing attributes of each to establish a method for transferring quantum information. The study, conducted by physicists at the University of Singapore, shows that by increasing the temporal dimension of the braid system and by manipulating increased Majorana particle modes, fewer physical devices and the accoutrements are needed to produce desired results. The long-term vision is to produce a physically smaller and less complex quantum computing system architecture.
Superconducting Qubit Transferred Via Coaxial Cable
Physicists at the Swiss Federal Institute of Technology in Zurich, Switzerland, have successfully transferred two qubits via coaxial cable. Using a microwave photon resonator to transmit the qubit state, the quantum state was successfully transmitted to a second qubit through the cable; a distance of about 2 meters. With a transmission success rate of 80 percent, the process was repeatable upwards of 50,000 times per second. The team’s next goal is to enable entanglement swapping – using qubits to transmit and receive. If successful, the technique could open up avenues for larger quantum computers.
U.K.’s 500Gbps Quantum-secure Network
The U.K.’s National Quantum Technologies Programme spawned a 500Gbps quantum-secure network between Cambridge and Ipswich. The distance covered is greater than 120km. Its purpose is to study and validate use cases for quantum key distribution.
U.S. Navy Awards Scientist for Quantum Work
Dr. Thomas Reinecke received accolades from the U.S. Office of Naval Research for his dedication to the Quantum Phenomena and Modeling Section at the Naval Research Laboratory.
Quantum Measurement Communication Speedup
A research team from Bar Ilan University in Tel Aviv has managed to implement a method of quantum communication measurement which greatly increases the rate at which quantum measurement data is transferred. Quantum encryption secrecy relies on the ability to determine if a man-in-the-middle attack (eavesdropper) has infiltrated the communication channel between two parties.
Are We Close, Yet?
We see and hear the question asked often…how close are we to a true quantum computer? The question is difficult to answer. The Qubit Report has seen anywhere from 3 years to 10 years and some predictions out to 20 years. (Naysayers say ‘never’, of course).