HKUST scholars assisting to make quantum computers a truth

A joint research group comprising students from the Hong Kong University of Science and Technology (HKUST) and the South China Normal University (SCNU) set a brand new document of photonic quantum reminiscence performance, pushing quantum computation towards truth. Like reminiscences in computers, quantum memories are crucial components for quantum computers – a brand new era of facts processors that obey quantum mechanics legal guidelines and might conquer the restrictions of classical computer systems. They may also push the boundaries of fundamental technology and help create new pills, explain cosmological mysteries, or decorate the accuracy of forecasts and optimization plans with their amazing computational electricity. Quantum computer systems are anticipated to be much faster and more effective than their traditional opposite numbers as statistics are calculated in qubits – which, unlike the older units (bits) used in classical computer systems, can constitute each 0 and 1 on the equal time.

quantum computers

Photonic quantum reminiscences allow for the garage and retrieval of flying unmarried-photon quantum states. However, manufacturing such enormously efficient quantum reminiscences remains a primary undertaking, requiring a perfectly matched photon-count quantum interface. Meanwhile, the energy of an unmarried photon is too vulnerable and maybe, without difficulty, lost into the noisy sea of stray mild heritage. For the long term, those issues suppressed quantum memory efficiencies to below 50% – a threshold fee essential for sensible applications. Now for the primary time in records, a joint studies crew led by a professor from the Department of Physics and William Mong Institute of Nano Science and Technology at HKUST; a senior professor from SCNU who graduated with his Ph.D. examine at HKUST; any other professor from SCNU and a former postdoctoral fellow at HKUST; as well as some other professor from SCNU and Nanjing University, has found a way to enhance the performance of photonic quantum recollections to over 85% with fidelity of over 99%.

The group created such a quantum reminiscence by trapping billions of rubidium atoms into a hair-like tiny area. Those atoms are cooled to almost absolute zero temperature (approximately 0.00001 K) using lasers and magnetic discipline. The team also observed a clever manner to differentiate the unmarried photon from the noisy heritage light sea. The locating introduced the dream of a ‘widespread’ quantum PC, a step in the direction of reality. Such quantum recollections can also be used as repeaters in a quantum network, laying the inspiration for a new technology of quantum-primarily based net. It is referred to in his work that the crew codes a flying qubit onto the polarization of a single photon and saves it into the laser-cooled atoms. Although the quantum memory confirmed in this work is the handiest for one qubit operation, it opens the possibility for raising quantum era and engineering within destiny. The locating was lately posted as a cowl story of the authoritative magazine – the modern chain of studies from one of the lead professor’s laboratories on a quantum reminiscence, which first began in 2011.

Johnny J. Hernandez
I write about new gadgets and technology. I love trying out new tech products. And if it's good enough, I'll review it here. I'm a techie. I've been writing since 2004. I started back in 2012.