Quantum Physics

   

Spooky Quantum Tunneling

Authors: George Rajna

This allowed the researchers to explore quantum tunneling, a phenomenon often used in undergraduate chemistry courses to demonstrate one of the "spookinesses" of quantum mechanics, Field says. [56] Measurements at the attosecond scale not only add an extra dimension for the future quantum technologies but also can fundamentally help in understanding the elephant of the quantum room: what is time? [55] Physicists have proposed an entirely new way to test the quantum superposition principle-the idea that a quantum object can exist in multiple states at the same time. [54] Researchers have developed a new device that can measure and control a nanoparticle trapped in a laser beam with unprecedented sensitivity. [53] Researchers have discovered a 'blind spot' in atomic force microscopy-a powerful tool capable of measuring the force between two atoms, imaging the structure of individual cells and the motion of biomolecules. [52] Australian scientists have investigated new directions to scale up qubits-utilising the spin-orbit coupling of atom qubits-adding a new suite of tools to the armory. [51] A team of international researchers led by engineers from the National University of Singapore (NUS) have invented a new magnetic device to manipulate digital information 20 times more efficiently and with 10 times more stability than commercial spintronic digital memories. [50] Working in the lab of Mikhail Lukin, the George Vasmer Leverett Professor of Physics and co-director of the Quantum Science and Engineering Initiative, Evans is lead author of a study, described in the journal Science, that demonstrates a method for engineering an interaction between two qubits using photons. [49] Researchers with the Department of Energy's Oak Ridge National Laboratory have demonstrated a new level of control over photons encoded with quantum information. [48] Researchers from Intel Corp. and the University of California, Berkeley, are looking beyond current transistor technology and preparing the way for a new type of memory and logic circuit that could someday be in every computer on the planet. [47]

Comments: 96 Pages.

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[v1] 2019-11-05 02:43:32

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