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“#Researchers on a path to build powerful and practical quantum computer” Credit: CC0 Public Domain For the first time, researchers have designed a fully connected 32-qubit trapped-ion quantum computer register operating at cryogenic temperatures. The new system represents an important step toward developing practical quantum computers. Junki Kim from Duke University will present the new…
“#Quest for quantum Internet gets a boost with new technique for making entanglement” Wavelength converter for our two-photon comb. Credit: Tomoyuki Horikiri, Yokohama National University Traditional ways of producing entanglements, necessary for the development of any ‘quantum internet’ linking quantum computers, are not very well suited for fiber optic telecoms networks used by today’s non-quantum…
“#A method to perform canonical phase measurements using quantum feedback” Credit: Martin et al. Light is known to have a number of fundamental properties, including color, brightness, and direction, most of which are immediately apparent and can be observed with the naked eye. There are now several instruments to detect and measure these properties, such…
“#Researchers develop a tool for characterizing frequency-entangled photon pairs” Credit: CC0 Public Domain Frequency-entangled photon pairs, an easily accessible type of entanglement, have been widely applied in fields like quantum-enhanced positioning and clock synchronization, and quantum spectroscopy. Recently, a research group led by Profs. Dong Ruifang and Zhang Shougang from the National Time Service Center…
“#Sharing a secret… the quantum way” An artistic impression sharing a secret using structured light. Credit: Wits University Researchers at the University of the Witwatersrand in Johannesburg, South Africa, have demonstrated a record setting quantum protocol for sharing a secret amongst many parties. The team created an 11-dimensional quantum state and used it to share…
“#’Light squeezer’ reduces quantum noise in lasers, could enhance quantum computing and gravitational-wave detection” Credit: CC0 Public Domain Physicists at MIT have designed a quantum “light squeezer” that reduces quantum noise in an incoming laser beam by 15 percent. It is the first system of its kind to work at room temperature, making it amenable…
“#High-order synthetic dimensions in waveguide photonic lattices” (a) Scheme of a four-waveguide array excited by a coherent state α〉 (red arrow indicates the excited waveguide). (b) Synthetic graphs emerging from the coherent state excitation of the system in (a). Since we are exciting with a coherent state, the probability amplitudes for each event are given…
“#Quantum entanglement demonstrated aboard orbiting CubeSat” Researchers developed a miniaturized source of quantum entanglement that measures only 20 by 10 centimeters. Credit: Centre for Quantum Technologies, National University of Singapore In a critical step toward creating a global quantum communications network, researchers have generated and detected quantum entanglement onboard a CubeSat nanosatellite weighing less than…