Results 221 to 230 of about 16,365 (265)

Ultrafast Multilevel Switching and Synaptic Behavior in a Planar Quantum Topological Memristor. [PDF]

Adv Sci (Weinh)
Rashid MU, Safder U, Khan SA, Pham AT, Sheeraz M, Dang NH, Thanh DL, Tahir Z, Maqbool F, Chung KH, Cho S, Kim J, Kim YS.   +12 more
europepmc   +1 more source

Imaging the sub-moiré potential using an atomic single electron transistor. [PDF]

Nature
Klein DR, Zondiner U, Keren A, Birkbeck J, Inbar A, Xiao J, Zamir Y, Sidorova M, Al Ezzi MM, Peng L, Watanabe K, Taniguchi T, Adam S, Ilani S.   +13 more
europepmc   +1 more source

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Quantum conduction in narrow constrictions

Physical Review B, 1989
Quantum conductance of narrow constrictions between two wide two-dimensional regions is obtained by using the recursive transfer-matrix technique to evaluate the Kubo formula exactly. Consistent with recent experimental findings, the conductance is found to be quantized in steps of 2${e}^{2}$/h only under a restricted set of optimal conditions ...
, He, , Das Sarma S
openaire   +2 more sources

Ballistic conductance of a quantum sphere

Journal of Physics A: Mathematical and General, 2002
Summary: The conductance of a quantum sphere with two one-dimensional wires attached to it is investigated. An explicit form for the conductance as a function of the chemical potential is found from first principles. The form and positions of the resonance maxima on a plot of the conductance are studied.
Brüning, J., Geyler, V. A., Margulis, V. A., Pyataev, M. A.   +3 more
openaire   +1 more source

Conductance fluctuations in quantum wires

Physical Review B, 1991
Conductance fluctuations in quantum wires are calculated numerically by a scattering-matrix formalism with Landauer's conductance formula. The fluctuations are not universal because they are strongly dependent on the system length. When many subbands are occupied, there appears the length region (called the universal region) longer than the mean free ...
, Tamura, , Ando
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On the conductance and the conductivity of disordered quantum wires

Journal of Applied Physics, 1996
We present a model, based on the Keldysh formalism, to study the transport properties of disordered quantum wires of finite lengths. Unlike the phenomenological models, we estimate the electron in- and out-scattering rates using the local density of states of various transverse modes that allow electrons to change their directions.
A. Haque, A. N. Khondker
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Quantum Hall conduction in quantum wires

Physica B: Condensed Matter, 1993
The nature of quantum Hall conduction in quantum wires is revealed from a numerical study. Whereas the Hall conductivity, σxy for the fixed chemical potential, gives quantum Hall steps, σxy for a fixed number of electrons, as appropriate for mesoscopic systems, an oscillation is exhibited against the Aharonov-Bohm flux Φ with period (12)φ0.
T. Ando, H. Aoki
openaire   +1 more source

A quantum algorithm for heat conduction with symmetrization

Science Bulletin, 2023
Heat conduction, driven by thermal non-equilibrium, is the transfer of internal thermal energy through physical contacts, and it exists widely in various engineering problems, such as spacecraft and state-of-the-art dilution refrigerators. The mathematical equation for heat conduction is a prototypical partial differential equation.
Shi-Jie, Wei, Chao, Wei, Peng, Lv, Changpeng, Shao, Pan, Gao, Zengrong, Zhou, Keren, Li, Tao, Xin, Gui-Lu, Long   +8 more
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Heat conductance of the quantum Hall bulk

Nature
30 pages 11 ...
Ron Aharon Melcer, Arup Kumar Paul, V Umansky   +2 more
exaly   +4 more sources