A quantum internet is closer to reality, thanks to this switch### ABSTRACT Adaptive bandwidth management for entanglement distribution in quantum networks Navin B. Lingaraju, Hsuan-Hao Lu, Suparna Seshadri, Daniel E. Leaird, Andrew M. Weiner, WEST LAFAYETTE, Ind. — When quantum computers become more powerful and widespread, they will need a…
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Purdue Engineers Developing Switch for Quantum InternetThe wavelength-selective switch also can be programmed to adjust bandwidth according to a user’s needs, which has not been possible with fixed optical filters. If photons are lost, quantum information is lost – a problem that tends to happen the farther photons have to…
Top U.S. Senate Democrat directs lawmakers to craft bill to counter ChinaA bipartisan group of U.S. lawmakers plans to meet with Biden at the White House on Wednesday to discuss supply chain issues, including semiconductor chips, Reuters reported. The Semiconductor Industry Association welcomed Schumer’s announcement and urged Biden and Congress…
‘Beautiful marriage’ of quantum enemiesMagnetic fields destroy superconductivity, but the quantum Hall effect only shows up in semiconductors at large magnetic fields, so you’re having to play with these two extremes,” Jena said. Jena led the research, published Feb. 19 in Science Advances, with doctoral student Phillip Dang and research…
Researchers create ‘beautiful marriage’ of quantum enemies“Magnetic fields destroy superconductivity, but the quantum Hall effect only shows up in semiconductors at large magnetic fields, so you’re having to play with these two extremes,” Jena said. Jena led the research, published Feb. 19 in Science Advances, with doctoral student Phillip Dang…
NSF CAREER Grant Fosters Research Into Quantum Dot Gubits – Corridor News“In the old days, electric charge was measure by mechanical sensors, because an electric charge produces an electric field. Quantum information is encoded in electron spin, but electron spin is a very difficult to measure,” Miyahara said. What I’m…
Superconducting nanowire improves electronics efficiencyNanowire could provide a stable, easy-to-make superconducting transistor Inspired by decades-old MIT research, the new technology could boost quantum computers and other superconducting electronics. “That’s what led to conventional superconducting electronics, and then ultimately to the superconducting quantum computer,” says Berggren. In Berggren’s device, current runs…
Nanowire could provide a stable, easy-to-make superconducting transistor“That’s what led to conventional superconducting electronics, and then ultimately to the superconducting quantum computer,” says Berggren. In Berggren’s device, current runs through a superconducting, supercooled wire called the “channel.” However, the Josephson junction “is fundamentally quite a delicate object,” Berggren adds. “Wires…
Nanowire could provide a stable, easy-to-make superconducting transistor: New technology could boost quantum computers and other superconducting electronics“That’s what led to conventional superconducting electronics, and then ultimately to the superconducting quantum computer,” says Berggren. In Berggren’s device, current runs through a superconducting, supercooled wire called the “channel.” However, the Josephson…
Harvard scientist create trilayer graphene superconductorNow, in a literal twist, Harvard scientists have expanded on that by adding a third layer and rotating it, opening the door for continued advancements in graphene-based superconductivity. Most superconductors today, including the double-layered graphene system, work only at ultracold temperatures. If this is verified,…
