Results 51 to 60 of about 1,855,980 (368)
Quantum Corrected Non-Thermal Radiation Spectrum from the Tunnelling Mechanism
Galaxies, 2015 The tunnelling mechanism is today considered a popular and widely used method in describing Hawking radiation. However, in relation to black hole (BH) emission, this mechanism is mostly used to obtain the Hawking temperature by comparing the probability ...
Subenoy Chakraborty +2 more
doaj +1 more source
Deciphering the origin of giant magnetic anisotropy and fast quantum tunnelling in Rhenium(IV) single-molecule magnets. [PDF]
Nat Commun, 2016 Single-molecule magnets represent a promising route to achieve potential applications such as high-density information storage and spintronics devices.
Singh SK, Rajaraman G.
europepmc +2 more sources
Dalton Transactions, 2019 We report magnetic hysteresis studies of three Dy(iii) single-molecule magnets (SMMs). The three compounds are [Dy(tBuO)Cl(THF)5][BPh4] (1), [K(18-crown-6-ether)(THF)2][Dy(BIPM)2] (2, BIPM = C{PPh2NSiMe3}2), and [Dy(Cpttt)2][B(C6F5)4] (3), chosen as they
F. Ortu +10 more
semanticscholar +1 more source
Analysis of dynamical tunnelling experiments with a Bose-Einstein condensate [PDF]
, 2004 Dynamical tunnelling is a quantum phenomenon where a classically forbidden process occurs, that is prohibited not by energy but by another constant of motion.
A. Mouchet +11 more
core +4 more sources
Inorganic Chemistry, 2019 The isocarbonyl-ligated metallocene coordination polymers [Cp*2M(μ-OC)W(Cp)(CO)(μ-CO)]∞ were synthesized with M = Gd (1, L = THF) and Dy (2, no L). In a zero direct-current field, the dysprosium version 2 was found to be a single-molecule magnet (SMM ...
Richard Collins +4 more
semanticscholar +1 more source
Observation of quantum-tunnelling-modulated spin texture in ultrathin topological insulator Bi2Se3 films [PDF]
Nature Communications, 2014 Understanding the spin-texture behaviour of boundary modes in ultrathin topological insulator films is critically essential for the design and fabrication of functional nanodevices. Here, by using spin-resolved photoemission spectroscopy with p-polarized
M. Neupane +20 more
semanticscholar +1 more source
, 2007 We add simple tunnelling effects and ray-splitting into the recent trajectory-based semiclassical theory of quantum chaotic transport. We use this to derive the weak-localization correction to conductance and the shot-noise for a quantum chaotic cavity ...
F. Haake, K. Richter, Robert S. Whitney
core +1 more source
Quantum tunneling with global charge [PDF]
Physical Review D, 1994 We investigate quantum tunneling in the theory of a complex scalar field with a global $U(1)$ symmetry when the charge density of the initial configuration does not vanish. We discuss the possible final configurations and set up the Euclidean path integral formalism to find the bubble nucleation and to study the bubble evolution.
openaire +3 more sources
Microwave spectroscopy on a double quantum dot with an on-chip Josephson oscillator
, 2000 We present measurements on microwave spectroscopy on a double quantum dot with an on-chip microwave source. The quantum dots are realized in the two-dimensional electron gas of an AlGaAs/GaAs heterostructure and are weakly coupled in series by a ...
+9 more
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Quantum tunnelling pathways of the water pentamer.
Physical Chemistry, Chemical Physics - PCCP, 2019 We apply the semiclassical instanton method to calculate all feasible tunnelling pathways in the water pentamer. Similarly to the water trimer, there are labile flip dynamics as well as a number of different bifurcation pathways coupled to flips.
Marko T. Cvitaš, Jeremy O. Richardson
semanticscholar +1 more source