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Jan 20, 2006

Quantum Computing Steps Forward

With the University of Michigan’s latest production of a quantum chip, it’s another step forward for quantum computers that will someday dwarf the abilities of today’s machines.

May 23, 2004

Excited-state spectroscopy on a nearly closed quantum dot via charge detection

J. M. Elzerman and co-workers from Delft University of Technology, The Netherlands report about demonstration of a new method for measuring the discrete energy spectrum of a quantum dot connected very weakly to a single lead ...

Quantum Physics Dec 16, 2021

Research team takes important step in quantum computing with error correction

Researchers at QuTech—a collaboration between the TU Delft and TNO—have reached a milestone in quantum error correction. They have integrated high-fidelity operations on encoded quantum data with a scalable scheme for ...

Quantum Physics Jun 26, 2019

Researchers explore architectural design of quantum computers

A recent study led by Princeton University researchers, in collaboration with University of Maryland and IBM, explored the architectural design of quantum computers (QC). In a paper presented at the 2019 ACM/IEEE International ...

Quantum Physics May 2, 2019

Phonon-mediated quantum state transfer and remote qubit entanglement

Quantum information platforms are based on qubits that talk to each other and photons (optical and microwave) are the carrier of choice—to date, to transfer quantum states between qubits. However, in some solid-state systems, ...

Quantum Physics Jun 19, 2018

Scientists demonstrate coherent coupling between a quantum dot and a donor atom in silicon

Quantum computers could tackle problems that current supercomputers can't. Quantum computers rely on quantum bits, or "qubits." Current computers perform millions of calculations, one after the other. Qubit coupling allows ...

Quantum Physics Apr 9, 2024

Measuring improvement in the design of pulses for quantum systems

Seeking a method for reducing error in noisy quantum systems, Kajsa Williams and Louis-S. Bouchard, researchers at the Center for Quantum Science and Engineering at the University of California, Los Angeles, implemented and ...

Quantum Physics Mar 19, 2024

Cracking the quantum code: Simulations track entangled quarks

Today, the word "quantum" is everywhere—in company names, movie titles, even theaters. But at its core, the concept of a quantum—the tiniest, discrete amount of something—was first developed to explain the behavior ...

Quantum Physics Mar 13, 2024

A new ion trap for larger quantum computers

Researchers at ETH have managed to trap ions using static electric and magnetic fields and to perform quantum operations on them. In the future, such traps could be used to realize quantum computers with far more quantum ...

General Physics Dec 27, 2023

A logical magic state with fidelity beyond distillation threshold realized on superconducting quantum processor

Quantum computers have the potential to outperform conventional computers on some tasks, including complex optimization problems. However, quantum computers are also vulnerable to noise, which can lead to computational errors.

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