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Japan's Nippon Telegraph and Telephone Company (NTT) is opening up its prototype quantum computing system for public use over the internet, giving users around the world access to one of the most elusive pieces of tech that this world has yet seem. Maybe we haven't seen it, though; observation does change the outcome, and these quantum physics really are as finicky as they come. Starting Nov. 27, Japan joins China and the U.S. in the race to develop the world's most advanced computers - and Japan has chosen the free, quantum-democratizing approach.
The NTT quantum computing solution is a state-sponsored research project, developed in conjunction with the National Institute of Informatics, Osaka university, and other partners. It has taken a different technical approach from other quantum computing developers, in that this particular computing system is exploiting the properties of light. Widely (un)known as Linear Optics Quantum Computation (LOQC), this particular approach foregoes qubits (which are extremely difficult to keep from decohering, and usually require very exotic cooling techniques to increase the qubits' stability. LOQC abandons qubits and uses photons to represent them as information carriers through linear optical elements (such as beam splitters, phase shifters, and mirrors). This allows the machine to process quantum information, using photon detectors and quantum memories to detect and store quantum information.
As a major upside, this approach also makes the machine capable of operating stably, around the clock, at room temperature, which is the reason public usage is now being rolled out. The aim is to test a range of uses and have this tie into developing software, and there's much to say about the usage of quantum computers for that purpose: in cases where a supercomputer would consume 10,000kW of power, NTT's prototype would use just 1kW - some tech enthusiasts use PSUs that are way more powerful than that.
View at TechPowerUp Main Site
The NTT quantum computing solution is a state-sponsored research project, developed in conjunction with the National Institute of Informatics, Osaka university, and other partners. It has taken a different technical approach from other quantum computing developers, in that this particular computing system is exploiting the properties of light. Widely (un)known as Linear Optics Quantum Computation (LOQC), this particular approach foregoes qubits (which are extremely difficult to keep from decohering, and usually require very exotic cooling techniques to increase the qubits' stability. LOQC abandons qubits and uses photons to represent them as information carriers through linear optical elements (such as beam splitters, phase shifters, and mirrors). This allows the machine to process quantum information, using photon detectors and quantum memories to detect and store quantum information.
As a major upside, this approach also makes the machine capable of operating stably, around the clock, at room temperature, which is the reason public usage is now being rolled out. The aim is to test a range of uses and have this tie into developing software, and there's much to say about the usage of quantum computers for that purpose: in cases where a supercomputer would consume 10,000kW of power, NTT's prototype would use just 1kW - some tech enthusiasts use PSUs that are way more powerful than that.
View at TechPowerUp Main Site
