[B! 超伝導] wamanのブックマーク

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超伝導に関するwamanのブックマーク (62)

Physicists create quantum state detector
waman 2018/02/11
『A phase difference between the wave functions on loop segments causes the critical current in the device to change from zero to maximum and back to zero in a steplike manner with the change of the quantum numbers in each of the loops』

超伝導

物性物理学

量子コンピュータ
リンク
Superconducting qubits can function as quantum engines
Superconducting qubits can function as quantum engines by Lisa Zyga , Phys.org In this double quantum well system, the left well rem ains static while the right one oscillates, allowing work to be performed on the system. Credit: Sachtleben et al. ©2017 American Physical Society (Phys.org)—Physicists have shown that superconducting circ uits—circ uits that have zero electrical resistance—can function
waman 2017/10/05
『The physicists explain that a similar behavior can be seen in nature, where quantum coherences improve the efficiency of processes such as photosynthesis, light sensing, and other natural processes』

量子コンピュータ

超伝導

光合成
リンク
Scientists shine new light on the 'other high temperature superconductor'
waman 2017/09/19
『in some cuprates compounds, such pulses (ultrashort, intense laser pulses) can be used to remove charge-density-waves and promote superconductivity at higher temperatures, possibly even up to room temperature』（この記事の研究ではないが。）

超伝導
リンク
Physicists predict supercurrent driven by potential information transfer
waman 2017/07/31
『a superconducting current of electrons can be induced to flow by a new kind of transport mechanism: the potential flow of information』

超伝導

情報理論
リンク
Physicists demonstrate topological superconductivity on palladium dibismuthides
waman 2017/07/26
『more importantly points to a novel avenue for searching topological pairing states on usual superconductors that might exhibit topologically nontrivial band structure by the engineering of Fermi level』

超伝導
リンク
Using graphene to create quantum bits
waman 2017/05/20
量子コンピュータ

超伝導
リンク
New material raises questions about theoretical models of superconductivity
waman 2017/03/12
『researchers were able to measure the superconducting gap in areas of the momentum space that were previously inaccessible in other materials, and found that their results contradicted the widely accepted antiferromagnetic fluctuation model』

超伝導
リンク
Superconductivity with two-fold symmetry—new evidence for topological superconductor SrxBi2Se3
waman 2017/02/16
『Doping-induced superconductors from topological insulators are predicted to be topological superconductors by theorists.』

超伝導
リンク
Superconductor's strange behaviour results in new laboratory tool
waman 2016/07/04
『the superconductivity was suppressed to a greater and to a lesser extent, depending on the direction in which the field pointed. In other words, the material's rotational symmetry was broken.』

超伝導
リンク
Physicists explore superconductivity at the two-dimensional limit
waman 2016/05/08
『…the temperature at which the layered material becomes superconducting increases as the number of layers is reduced, meaning that this property is indeed maintained at the two-dimensional limit.』

超伝導

2D
リンク
Physicists discover flaws in superconductor theory
waman 2016/04/10
『They discovered that for certain constraints on a magnetic pulse, Bean's model is far off base, and a significantly different spatial distribution of field occurs. "Great increases in field occur suddenly, in a single leap, whereas Bean's model predicts a steady, slow increase," Weinstein said』

超伝導
リンク
Discovery of a magnet capable of controlling Dirac fermions with zero mass
waman 2016/04/01
『by confining Dirac electrons in the two-dimensional layer of Bi, or the superconducting layer, through the use of this effect, this joint group achieved a bulk half-integer quantum Hall effect, in which the value of the Hall resistance becomes discrete,…』

物性物理学

超伝導
リンク
Superconductivity seen in a new light
waman 2016/04/01
『This implies that these spectroscopic signatures do not originate in the vortex cores and cannot be in competition with the superconducting state』『This study therefore questions the view that these two states are in competition, as largely assumed until now. 』

超伝導
リンク
A proposed superconductivity theory receives exclusive experimental confirmation
waman 2016/03/31
『Varma proposed transitions to a new class of symmetries, in which the direction of time was picked by the direction of currents.』『he formulated a theory for how quantum fluctuations coupled to electrons give rise to the observed symmetry in superconductivity.』

超伝導
リンク
New unconventional superconductors and Weyl semi-metal dynamics
waman 2016/03/30
『a one-dimensional superfluid channel and exhibit rarely reported triplet superconductivity』『The chiral magnetic state is essential to the superconductivity in that system』（別の物質）

超伝導

物性物理学
リンク
Superconductors could detect superlight dark matter
waman 2016/02/10
『Superlight dark matter has a mass at the low end of the range of 1 keV (1000 electron volts) to 10 GeV, or in other words, up to a million times lighter than the proton』

ダークマター

超伝導
リンク
Researchers create first self-assembled superconductor
waman 2016/02/01
『We tried going directly to 850, and that didn't work," Wiesner said. "So we had to heat it to 700, cool it and then heat it to 850 and then it worked. Only then.』

超伝導
リンク
Paper proposes method to create gravitational fields
waman 2016/01/12
超伝導電磁石を使って重力場を発生させられる装置ができる？　実際にできるとしてどれくらいのエネルギーが必要なんだろ。

重力

超伝導
リンク
Choreographing the dance of electrons
waman 2015/12/30
『The NUS research team was able to replicate the effects of chemical doping in this study by using only external electric and magnetic fields applied to an atomically thin material』『In particular, we could also drive the material into a state called superconductivity』

物性物理学

超伝導
リンク
Magnetic invisibility cloak shields magnets from magnetic fields
waman 2015/12/24
『a 3D magnetic invisibility cloak』『The cloak has a spherical structure consisting of two shells: a superconducting inner shell (made of single-crystal YBCO) and a ferromagnetic outer shell (made of a nickel zinc composite)』

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超伝導
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