tag: Qubits

Analysis of the Errors of High-Fidelity Two-Qubit Gates in Silicon Quantum Dots (UNSW et al.)
By Technical Paper Link - 28 Aug, 2024 - Comments: 0

A new technical paper titled "Assessment of the errors of high-fidelity two-qubit gates in silicon quantum dots" was published by researchers at UNSW, Diraq, Sandia National Laboratories, Keio University, Leibniz-Institut für Kristallzüchtung and others. Abstract "Achieving high-fidelity entangling operations between qubits consistently is essential for the performance of multi-qubit syst... » read more

Programmable Quantum Emitter Formation In Si (Lawrence Berkeley National Lab., UC Berkeley)
By Technical Paper Link - 08 Jul, 2024 - Comments: 0

A technical paper titled “Programmable quantum emitter formation in silicon” was published by researchers at Lawrence Berkeley National Laboratory and University of California Berkeley. Abstract: "Silicon-based quantum emitters are candidates for large-scale qubit integration due to their single-photon emission properties and potential for spin-photon interfaces with long spin coherence t... » read more

Research Bits: June 25
By Liz Allan - 25 Jun, 2024 - Comments: 0

Quantum on silicon Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) developed a platform to probe and control qubits in silicon for quantum networks, after an earlier discovery that defects in silicon could be used to send and store quantum information over widely used telecommunications wavelengths. The device uses an electric diode to manipulate... » read more

Research Bits: June 4
By Jesse Allen - 04 Jun, 2024 - Comments: 0

Ultra-pure silicon Researchers from the University of Manchester and University of Melbourne developed a technique to engineer ultra-pure silicon that could be used in the construction of high-performance qubit devices that extend quantum coherence times. The highly purified silicon chips house and protect the qubits so they can sustain quantum coherence much longer, enabling complex calcul... » read more

Quantum Computing Challenged By Security, Error Correction
By Karen Heyman - 04 Apr, 2024 - Comments: 0

The number and volume of warnings about a post-quantum cryptography (PQC) world are rising, as governments, banks, and other entities prepare for a rash of compromised data and untrustworthy digital signatures. Exactly when this will become a genuine threat is still somewhat fuzzy, because it depends on progress in developing robust qubits. A report by McKinsey & Co. estimates that by 20... » read more

Superconducting Qubits Made Using Industry-Standard, Advanced Semiconductor Manufacturing (imec, KU Leuven)
By Technical Paper Link - 25 Mar, 2024 - Comments: 0

A new technical paper titled "High-coherence superconducting qubits made using industry-standard, advanced semiconductor manufacturing" was published by researchers at imec and KU Leuven. Abstract: "The development of superconducting qubit technology has shown great potential for the construction of practical quantum computers. As the complexity of quantum processors continues to grow, the ... » read more

Optimizing Quantum Gates For Error Correction in Superconducting Qubits (Google AI)
By Technical Paper Link - 25 Mar, 2024 - Comments: 0

A new technical paper titled "Optimizing quantum gates towards the scale of logical qubits" was published by researchers at Google AI and UC Riverside. Abstract "A foundational assumption of quantum error correction theory is that quantum gates can be scaled to large processors without exceeding the error-threshold for fault tolerance. Two major challenges that could become fundamental road... » read more

Superexchange Coupling Of Donor Qubits In Si For Quantum Computers (UNSW)
By Technical Paper Link - 06 Feb, 2024 - Comments: 0

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

Research Bits: December 11
By Jesse Allen - 11 Dec, 2023 - Comments: 0

Diamond device with high breakdown voltage Researchers from the University of Illinois at Urbana-Champaign developed diamond p-type lateral Schottky barrier diodes they say have the highest breakdown voltage and lowest leakage current compared to previous diamond devices. The diamond device can sustain high voltage, approximately 5 kV, although the voltage was limited by setup of measurement a... » read more

Framework To Compile Quantum Programs Onto Chiplets (UCSB, Cisco)
By Technical Paper Link - 03 Jun, 2023 - Comments: 0

A technical paper titled "Compilation for Quantum Computing on Chiplets" was published by researchers at UC Santa Barbara and Cisco Quantum Lab. Abstract: "Chiplet architecture is an emerging architecture for quantum computing that could significantly increase qubit resources with its great scalability and modularity. However, as the computing scale increases, communication between qubits w... » read more

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