News tagged with quantum phase
Vertical cavity quantum switch could lead us away from electronics-based computing
(PhysOrg.com) -- Right now, many researchers around the world are working on ways to move away from electronics-dominated computing systems. There are a number of ideas about how this can be accomplished. "We are trying to ...
Jun 30, 2011 |
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Origin of magnetic fields may lie in special relativity's spacetime distortions
(PhysOrg.com) -- Magnetic fields play an important role on scales ranging from the sub-atomic to the cosmic, from particle spins to galaxy clusters. Although scientists know how to create and manipulate magnetic ...
Sep 09, 2010 |
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Learning more about phase transitions in small systems
(PhysOrg.com) -- "People want to understand phase transitions in a finite system by quantum simulation," Luming Duan tells PhysOrg.com. Duan is a professor at the University of Michigan, located in Ann Arbor. "Being able t ...
Jun 23, 2011 |
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Long predicted but never observed: A new kind of quantum junction
A new type of quantum bit called a "phase-slip qubit", devised by researchers at the RIKEN Advanced Science Institute and their collaborators, has enabled the world's first-ever experimental demonstration ...
Apr 18, 2012 |
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Rice's 'quantum critical' theory gets experimental boost
New evidence this week supports a theory developed five years ago at Rice University to explain the electrical properties of several classes of materials -- including unconventional superconductors -- that ...
Jan 11, 2012 |
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Exerting better control over matter waves
(PhysOrg.com) -- “The concept of matter waves is at the heart of quantum mechanics,” Oliver Morsch tells PhysOrg.com. “At the beginning of the last century, scientists discovered that solid particles could exhibit proper ...
Mar 27, 2009 |
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Observing the Quantum Hall Effect in 'Real' Space
(PhysOrg.com) -- When water transforms into steam, or magnetized iron changes to demagnetized iron, Katsushi Hashimoto explains to PhysOrg.com, a phase transition is taking place: “Classical phase transitions…often share ...
Jan 12, 2009 |
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Watching an electron being born
Atomic processes take place on extremely short time scales. Measurements at the Vienna University of Technology (TU Vienna) can now visualize these processes.
May 15, 2012 |
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Using quantum smoothing for optical phase estimation
(PhysOrg.com) -- "There are many situations where we need to measure the classical properties of a quantum system," Elanor Huntington tells PhysOrg.com. "Optical phase estimation is one of these techniques, and it is cen ...
Mar 11, 2010 |
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Evidence of macroscopic quantum tunneling detected in nanowires
A team of researchers at the University of Illinois has demonstrated that, counter to classical Newtonian mechanics, an entire collection of superconducting electrons in an ultrathin superconducting wire is ...
May 27, 2009 |
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Scientists Detect 'Fingerprint' of High-Temp Superconductivity Above Transition Temperature
(PhysOrg.com) -- A team of U.S. and Japanese scientists has shown for the first time that the spectroscopic "fingerprint" of high-temperature superconductivity remains intact well above the super chilly temperatures ...
Aug 27, 2009 |
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'Wedding Cake' Images Display Transitions between Exotic Quantum States
(PhysOrg.com) -- Transitions are exciting. And at temperatures close to absolute zero, studying the transition from one quantum phase to another tantalizes physicists looking for a deeper understanding of ...
Aug 20, 2009 |
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The day the universe froze: New dark energy model includes cosmological phase transition
Imagine a time when the entire universe froze. According to a new model for dark energy, that is essentially what happened about 11.5 billion years ago, when the universe was a quarter of the size it is today.
May 08, 2009 |
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A microscopic view on quantum fluctuations
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics achieve direct imaging of quantum fluctuations at absolute zero temperature.
Oct 14, 2011 |
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Squeezed light from single atoms
(PhysOrg.com) -- Max Planck Institute of Quantum Optics scientists generate amplitude-squeezed light fields using single atoms trapped inside optical cavities.
Jun 30, 2011 |
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