| 1. |
- García-Pérez, Ó, et al.
(författare)
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Experimental analysis of shot-noise suppression in InGaAs/InAlAs recessed planar diodes at room temperature
- 2015
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Ingår i: 2015 International Conference on Noise and Fluctuations, ICNF 2015. - 9781467383356
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Konferensbidrag (refereegranskat)abstract
- In this work, current noise measurements of submicron InGaAs/InAlAs recessed planar diodes are presented. The presence of a barrier in the potential profile under the source side of the recess may affect the statistics of passage of carriers, which in turn would lead to suppressed shot noise levels. However, evidencing this noise suppression from the measurements is challenging, due to the undesired effects from the accesses and contact resistances. The presented results are provided as a starting point for a future de-embedding process able to precisely determine the actual noise properties below the recess.
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| 2. |
- Kish, L. B., et al.
(författare)
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Critical remarks on Landauer's principle of erasure-dissipation : Including notes on Maxwell demons and Szilard engines
- 2015
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Ingår i: Proceedings. - 9781467383356
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Konferensbidrag (refereegranskat)abstract
- We briefly address Landauer's Principle and some related issues in thermal demons. We show that an error-free Turing computer works in the zero-entropy limit, which proves Landauer's derivation incorrect. To have a physical logic gate, memory or information-engine, a few essential components necessary for the operation of these devices are often neglected, such as various aspects of control, damping and the fluctuation-dissipation theorem. We also point out that bit erasure is typically not needed or used for the functioning of computers or engines (except for secure erasure).
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| 3. |
- Kish, L. B., et al.
(författare)
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Waves in a short cable at low frequencies, or just hand-waving?
- 2015
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Ingår i: 2015 International Conference On Noise And Fluctuations (ICNF). - 9781467383356
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Konferensbidrag (refereegranskat)abstract
- We address the question of low-frequency signals in a short cable, which are often considered as waves in engineering calculations. Such an assumption violates several laws of physics, but exact calculations can be carried out via linear network theory.
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| 4. |
- Xu, F., et al.
(författare)
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Over-bias light emission due to higher order quantum noise of a tunnel junction
- 2015
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Ingår i: 2015 International Conference on Noise and Fluctuations (ICNF). - : IEEE conference proceedings. - 9781467383363 - 9781467383356
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Konferensbidrag (refereegranskat)abstract
- Understanding tunneling from an atomically sharp tip to a metallic surface requires to account for interactions on a nanoscopic scale. Inelastic tunneling of electrons generates emission of photons, whose energies intuitively should be limited by the applied bias voltage. However, experiments [Phys. Rev. Lett. 102, 057401 (2009)] indicate that more complex processes involving the interaction of electrons with plasmon polaritons lead to photon emission characterized by over-bias energies. We propose a model of this observation in analogy to the dynamical Coulomb blockade, originally developed for treating the electronic environment in mesoscopic circuits. We explain the experimental finding quantitatively by the correlated tunneling of two electrons interacting with an LRC circuit modeling the local plasmon-polariton mode. To explain the over-bias emission, the non-Gaussian statistics of the tunneling dynamics of the electrons is essential.
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