Content for RIKEN.Edu

RIKEN.Edu

Riken is a large scientific research institute in Japan. Founded in 1917, it now has about 3,000 scientists on seven campuses across Japan, including the main site at Wakō, Saitama Prefecture, just outside Tokyo. Riken is a Designated National Research and Development Institute, and was formerly an Independent Administrative Institution. "Riken" is a contraction of the formal name Rikagaku Kenkyūjo, and its full name in Japanese is Kokuritsu Kenkyū Kaihatsu Hōjin Rikagaku Kenkyūsho and in English is the Institute of Physical and Chemical Research. Riken conducts research in many areas of science, including physics, chemistry, biology, genomics, medical science, engineering, high-performance computing and computational science, and ranging from basic research to practical applications with 485 partners worldwide. It is almost entirely funded by the Japanese government, and its annual budget is about ¥88 billion (US$790 million).

It takes three to tangle: long-range quantum entanglement needs three-way interaction

“A theoretical study shows that long-range entanglement can indeed survive at temperatures above absolute zero, if the correct conditions are met. Quantum computing has been earmarked as the next revolutionary step in computing. However current systems are only practically stable …

Wormholes help resolve black hole information paradox

“A mathematical analysis helps illuminate the puzzle over how information escapes from a black hole A RIKEN physicist and two colleagues have found that a wormhole—a bridge connecting distant regions of the Universe—helps to shed light on the …

Faster technique for resetting quantum circuits proposed

“Simulations suggest a new technique for resetting ‘qubits’ in a quantum computer without harming them Rebooting a quantum computer is a tricky process that can damage its parts, but now two RIKEN physicists have proposed a fast and controllable way …

Scientists achieve key elements for fault-tolerant quantum computation in silicon spin qubits

“Researchers from RIKEN and QuTech—a collaboration between TU Delft and TNO— have achieved a key milestone toward the development of a fault-tolerant quantum computer. They were able to demonstrate a two-qubit gate fidelity of 99.5 percent—higher than …

Exotic six-quark particle predicted by supercomputers

“A new particle predicted by supercomputers could shed light on how matter is formed The predicted existence of an exotic particle made up of six elementary particles known as quarks by RIKEN researchers could deepen our understanding of how quarks …

Quantum entanglement of three spin qubits demonstrated in silicon

“An all-RIKEN team has increased the number of silicon-based spin qubits that can be entangled from two to three, highlighting the potential of spin qubits for realizing multi-qubit quantum algorithms1. Quantum computers have the potential to leave conventional computers …

Electron–electron and spin–orbit interactions compete to control the electron

“The interactions that compete to control electron spin can give rise to novel electronic states useful for future quantum technologies In a finding that will help to identify exotic quantum states, RIKEN physicists have seen strongly competing factors that affect …

Two-dimensional materials and interfaces can convert spin current into a vortex of charge current

“Low-power information processing could be possible using a new method for converting between spin and charge currents Energy-efficient spintronic devices are closer to being realized thanks to a new mechanism predicted by RIKEN physicists for converting between electrical current vortices …

Engineering matter at the atomic level

“As devices continue to be built on an increasingly small scale, scientists are looking toward developing ways to engineer materials at the atomic level. In a breakthrough that will contribute to this, published in Nature Communications, researchers from the RIKEN …

Giant radio pulses from pulsars are hundreds of times more energetic than previously believed

“A group led by scientists from the RIKEN Cluster for Pioneering Research, using coordinated observations of the Crab pulsar in a number of frequencies, have discovered that the “giant radio pulses” which it emits include an increase in x-ray emissions …