aqora

Solid start for solid-state quantum bits

Caspar H. van der Wal, Leo P. Kouwenhoven

Quantum computers have the potential to solve certain problems much faster than any classical computer. For instance, present-day computers would take longer than the age of the universe to factorize a 1000-bit number. A quantum computer could do it in a few seconds. These theoretical possibilities have stimulated a large amount of experimental research on the various technologies that might be used to actually build a quantum computer. Yasunoba Nakamura and colleagues at the NEC Fundamental Research Laboratories in Tsukuba and the Japan Science and Technology Corporation in Kawaguchi recently demonstrated for the first time some of the techniques that would be needed to build a computer using a solid-state device (Y Nakamura, Yu A Pashkin and J S Tsai 1999 Nature 398 786).Quantum computers have the potential to solve certain problems much faster than any classical computer. For instance, present-day computers would take longer than the age of the universe to factorize a 1000-bit number. A quantum computer could do it in a few seconds. These theoretical possibilities have stimulated a large amount of experimental research on the various technologies that might be used to actually build a quantum computer. Yasunoba Nakamura and colleagues at the NEC Fundamental Research Laboratories in Tsukuba and the Japan Science and Technology Corporation in Kawaguchi recently demonstrated for the first time some of the techniques that would be needed to build a computer using a solid-state device (Y Nakamura, Yu A Pashkin and J S Tsai 1999 Nature 398 786).

Physics WorldJul 1, 19991 citation

Solid-State Quantum Computing Made Simple?

ScienceJul 22, 20050 citations

Quantum Mechanics, Born Again

Gerald Holton

In his Letter (Physics Today, April 2001, page 94), Carlos D. Galles noted that a photograph caption in my July 2000 Physics Today article on Werner Heisenberg and Albert Einstein (page 39) erroneously credits Heisenberg instead of Max Born with being the first to name the new physics “Quantum Mechanics.” For evidence, he referred to an article in Bartel L. van der Waerden’s Sources of Quantum Mechanics (Dover, New York, 1967).I thank Galles for his correction. But allow me to add that the photograph and its caption were supplied not by me but by Physics Today staff (a staff that I have always found to be helpful to authors, and that rarely, except perhaps at the last minute of production, would make even a small glitch). I also congratulate Galles for reminding readers of the useful book by van der Waerden. I know it well; as it happens, I placed it as volume 5 in the Dover series, Classics of Science, when I was the series’ editor.© 2001 American Institute of Physics.In his Letter (Physics Today, April 2001, page 94), Carlos D. Galles noted that a photograph caption in my July 2000 Physics Today article on Werner Heisenberg and Albert Einstein (page 39) erroneously credits Heisenberg instead of Max Born with being the first to name the new physics “Quantum Mechanics.” For evidence, he referred to an article in Bartel L. van der Waerden’s Sources of Quantum Mechanics (Dover, New York, 1967).I thank Galles for his correction. But allow me to add that the photograph and its caption were supplied not by me but by Physics Today staff (a staff that I have always found to be helpful to authors, and that rarely, except perhaps at the last minute of production, would make even a small glitch). I also congratulate Galles for reminding readers of the useful book by van der Waerden. I know it well; as it happens, I placed it as volume 5 in the Dover series, Classics of Science, when I was the series’ editor.© 2001 American Institute of Physics.

Physics TodayMay 1, 20011 citation

Experimental Implementation—Solid-State Hybrid Quantum System

Stefan Putz

Springer thesesJan 1, 20170 citations

First principles investigation of solid state defects acting as quantum bits

Meysam Mohseni

May 4, 20260 citations

Playing Tricks with Slow Light

Marlan O. Scully, Muhammad Suhail Zubairy

Recent studies have shown that light can be slowed down substantially and even stopped. In their Perspective, Scully and Zubairy highlight two reports that may help to use slow and stopped light in applications. In the first report, Bigelow et al . show that light can be slowed to a speed of 100 m/s in room-temperature solids. The work should aid the development of devices that exploit slow light. In the second report, van der Wal et al . use slow-light physics to make correlated photon states, which may find application in quantum cryptography.Recent studies have shown that light can be slowed down substantially and even stopped. In their Perspective, Scully and Zubairy highlight two reports that may help to use slow and stopped light in applications. In the first report, Bigelow et al . show that light can be slowed to a speed of 100 m/s in room-temperature solids. The work should aid the development of devices that exploit slow light. In the second report, van der Wal et al . use slow-light physics to make correlated photon states, which may find application in quantum cryptography.

ScienceJul 10, 200341 citations

Bit of a hype

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Bit of a hype

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