Quantum Physics – Page 4 – En.BuradaBiliyorum.Com

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#Mathematical tool helps calculate properties of quantum materials more quickly

Admin6 years ago06 mins

“#Mathematical tool helps calculate properties of quantum materials more quickly” Intelligent mathematical tools for the simulation of spin systems reduce the computing time required on supercomputers. Some of the fastest supercomputers in the world are currently located at Forschungszentrum Jülich (shown here is JUWELS). Credit: Forschungszentrum Jülich/Sascha Kreklau Many quantum materials have been nearly impossible…

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#Quantum researchers create an error-correcting cat

Admin6 years ago07 mins

“#Quantum researchers create an error-correcting cat” Credit: Pixabay/CC0 Public Domain Yale physicists have developed an error-correcting cat—a new device that combines the Schrödinger’s cat concept of superposition (a physical system existing in two states at once) with the ability to fix some of the trickiest errors in a quantum computation. It is Yale’s latest breakthrough…

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#Efficient valves for electron spins

Admin6 years ago07 mins

“#Efficient valves for electron spins” Both quantum dots (dashed ellipses) on the nanowire are tuned by nanomagnets (brown bars) such that they only allow electrons with an ‘up’ spin to pass. If the orientation of one of the magnets is changed, the current flow is suppressed. Credit: University of Basel, Department of Physics Researchers at…

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#Scientists develop first quantum algorithm to characterize noise across large systems

Admin6 years ago03 mins

“#Scientists develop first quantum algorithm to characterize noise across large systems” The researchers used the IBM Quantum Experience to conduct their experiments. Credit: IBM Quantum systems are notoriously prone to errors and noise. In order to overcome this and build a functional quantum computer, physicists should ideally understand the noise across an entire system. That…

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#Grasshopper jumping on Bloch sphere finds new quantum insights

Admin6 years ago06 mins

“#Grasshopper jumping on Bloch sphere finds new quantum insights” Credit: CC0 Public Domain New research at the University of Warwick has (pardon the pun) put a new spin on a mathematical analogy involving a jumping grasshopper and its ideal lawn shape. This work could help us understand the spin states of quantum-entangled particles. The grasshopper…

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#Time-reversal of an unknown quantum state

Admin6 years ago013 mins

“#Time-reversal of an unknown quantum state” Credit: Creative Commons, Communications Physics, doi: 10.1038/s42005-020-00396-0 Physicists have long sought to understand the irreversibility of the surrounding world and have credited its emergence to the time-symmetric, fundamental laws of physics. According to quantum mechanics, the final irreversibility of conceptual time reversal requires extremely intricate and implausible scenarios that…

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#Real-world applications for atom interferometric quantum sensors

Admin6 years ago06 mins

“#Real-world applications for atom interferometric quantum sensors” Credit: Pixabay/CC0 Public Domain Experts in quantum cold-atom sensors are delving deep underground in a new project aimed at harnessing quantum gravity sensing technology in harsh underground borehole environments. The Gravity Delve project, funded by Innovate UK, brings together academics from the UK Quantum Technology Hub Sensors and…

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#Thermal chaos returns quantum system to its unknown past

Admin6 years ago016 mins

“#Thermal chaos returns quantum system to its unknown past” Credit: Daria Sokol, MIPT Building on last year’s breakthrough ‘time reversal’ experiment, two researchers from the Moscow Institute of Physics and Technology and Argonne National Laboratory have published a new theoretical study in Communications Physics. While their previous paper dealt with a predefined quantum state, this…

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#Manifestation of quantum distance in flat band materials

Admin6 years ago012 mins

“#Manifestation of quantum distance in flat band materials” (Left) The kagome lattice structure in real space. (Right) The corresponding band structure in momentum space. The bottom band is the flat band which exhibits anomalous Landau level spectrum. Credit: IBS The geometry of an object indicates its shape or the relationship of its parts to each…

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#Spin wave detective story redux: Researchers find more surprising behavior in a 2-D magnet

Admin6 years ago09 mins

“#Spin wave detective story redux: Researchers find more surprising behavior in a 2-D magnet” Vibrations in a lattice: This is an illustration of quantized lattice vibrations in a material, where the word ‘quantized’ is used to mean that only certain frequencies of vibrations are allowed. In this animation, you can see how this vibration propagates…