Superexchange Coupling Of Donor Qubits In Si For Quantum Computers (UNSW)


A technical paper titled “Superexchange coupling of donor qubits in silicon” was published by researchers at University of New South Wales. Abstract: "Atomic engineering in a solid-state material has the potential to functionalize the host with novel phenomena. STM-based lithographic techniques have enabled the placement of individual phosphorus atoms at selective lattice sites of silicon... » read more

Startup Funding: July 2023


Investors pumped more than $2.8 billion into 123 companies July. It was a particularly strong month for photonics companies, with a photonic integrated circuit foundry raising more than $100 million. Startups this month also are using photonic technology in innovative ways. This includes an all-optical RISC processor, biomarker identification, faster fully homomorphic encryption, and more AI... » read more

Week In Review: Design, Low Power


RISC-V RISC-V International announced four new specification and extension approvals. Efficient Trace for RISC-V defines an approach to processor tracing that uses a branch trace. RISC-V Supervisor Binary Interface architects a firmware layer between the hardware platform and the operating system kernel using an application binary interface in supervisor mode to enable common platform services... » read more

Power/Performance Bits: Jan. 5


Quiet qubits Researchers at the University of New South Wales Sydney recorded the lowest noise levels yet for a semiconductor qubit. Charge noise caused by material imperfections interferes with the information encoded on qubits, reducing accuracy. "The level of charge noise in semiconductor qubits has been a critical obstacle to achieving the accuracy levels we need for large-scale error-c... » read more