tag: quantum computing

The Race Toward Quantum Advantage
By Brian Bailey - 14 Sep, 2023 - Comments: 0

Quantum computing has yet to show an advantage over conventional computing, but huge sums of money are betting it will. So far that hasn't happened. Early quantum computers were created in the mid-1990s after mathematicians had demonstrated the effectiveness of applying quantum approaches to some problems. At that stage they were simulated using conventional computing, but it started the rac... » read more

The Utility Of Shallow Dynamic Circuits For Long-Range Entanglement On Large-Scale Quantum Devices
By Technical Paper Link - 06 Sep, 2023 - Comments: 0

A technical paper titled “Efficient Long-Range Entanglement using Dynamic Circuits” was published by researchers at IBM Research, IBM T.J. Watson Research Center, University of Southern California, MIT-IBM Watson AI Lab, and IBM Quantum. Abstract: "Quantum simulation traditionally relies on unitary dynamics, inherently imposing efficiency constraints on the generation of intricate entangl... » read more

How A Fault-Tolerant Quantum Memory Could Be Realized Using Near-Term Quantum Processors With Small Qubit Overhead
By Technical Paper Link - 28 Aug, 2023 - Comments: 0

A technical paper titled “High-threshold and low-overhead fault-tolerant quantum memory” was published by researchers at IBM T.J. Watson Research Center and MIT-IBM Watson AI Lab. Abstract: "Quantum error correction becomes a practical possibility only if the physical error rate is below a threshold value that depends on a particular quantum code, syndrome measurement circuit, and a decod... » read more

TaN Nanowires At 300 mm Wafer Scale For Quantum Computing And More
By Technical Paper Link - 15 Jul, 2023 - Comments: 0

A technical paper titled "Ultra-thin TaN Damascene Nanowire Structures on 300 mm Si Wafers for Quantum Applications" was published by researchers at NY CREATES, United States Air Force Research Laboratory and SUNY Polytechnic Institute. Abstract: "We report on the development and characterization of superconducting damascene tantalum nitride (TaN) nanowires, 100 nm to 3 μm wide, with TaN thi... » read more

Demonstrating The Utility Of Quantum Computing In A Pre-Fault-Tolerant Era
By Technical Paper Link - 28 Jun, 2023 - Comments: 0

A technical paper titled “Evidence for the utility of quantum computing before fault tolerance” was published by researchers at IBM Quantum, University of California Berkeley, RIKEN, and Lawrence Berkeley National Laboratory. Abstract: "Quantum computing promises to offer substantial speed-ups over its classical counterpart for certain problems. However, the greatest impediment to realizi... » read more

Research Bits: June 27
By Susan Rambo - 27 Jun, 2023 - Comments: 0

Tunable soliton microcomb Researchers from the University of Rochester and CalTech say they have created the first microwave-rate soliton microcomb that can control the repetition rate at a high speed. Microcombs are frequency combs that can fit on a microchip, which will be useful in photonics. Solitons are solitary waves that keep their shape as they move at a constant speed. The team put an... » read more

Improving Performance Of Artificial Intelligence And Quantum Computers
By Technical Paper Link - 24 Jun, 2023 - Comments: 0

A technical paper titled “Gate-tunable superconducting diode effect in a three-terminal Josephson device” was published by researchers at University of Minnesota, University of California Santa Barbara, and Stanford University. Abstract: "The phenomenon of non-reciprocal critical current in a Josephson device, termed the Josephson diode effect, has garnered much recent interest. Realizati... » read more

Research Bits: June 20
By Susan Rambo - 20 Jun, 2023 - Comments: 0

Quantum takes a Helium 3 bath A team of researchers from National Physical Laboratory, Royal Holloway University of London, Chalmers University of Technology, and Google have found that immersing superconducting quantum circuits in a bath of Helium-3 (3He) can cool down quantum circuits to almost 100 times lower than was possible before, to achieve under a thousand of a degree above absolute z... » read more

End-To-End System Architecture For Quantum RAM (Yale, AWS, Caltech)
By Technical Paper Link - 14 Jun, 2023 - Comments: 0

A technical paper titled “Systems Architecture for Quantum Random Access Memory” was published by researchers at Yale University, AWS Center for Quantum Computing, and California Institute of Technology. Abstract: "Operating on the principles of quantum mechanics, quantum algorithms hold the promise for solving problems that are beyond the reach of the best-available classical algorithms.... » read more

Fast Time-To-Digital Converters As Ultra-Precise Stopwatches For Quantum Technologies
By Kay-Uwe Giering - 08 Jun, 2023 - Comments: 0

Quantum technologies enable versatile novel applications in modern engineering topics such as information processing, communication or sensing. In particular, photonic quantum technologies are an innovative field of development which, based on the quantization of light, implements a qubit for example in the polarization or phase of a single photon, or in other degrees of freedom of the electrom... » read more

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