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Here's how I visualise Quantum Tunnelling (or Quantum Tunneling if you're American). Hey everyone! I'm back after a lengthy hiatus! I had a dodgy computer that meant that I couldn't really create or upload anything, but I'm back up and running now! In this video I wanted to talk to you about Quantum Tunnelling - a phenomenon that is another one of those "wtf quantum mechanics" ideas. The easiest way to learn about this phenomenon (in my opinion_ is to consider the behaviour of an electron when it encounters a potential barrier. If we use classical physics to analyse the behaviour of this electron, we see that if the electron has less energy than the peak of the barrier, then it cannot "overcome" the barrier. However if it has more energy than the peak of the barrier, then it can get to the other side. A nice analogy is to imagine a ball trying to roll up a hill - we need to provide it with enough energy for it to get to the top of the hill and roll over to the other side. However, this analogy has limitations which is why I don't like to use it too often. So that is how an electron should behave when it encounters a potential barrier under the rules of classical physics. However, we like to do things in a much more quantum manner on this channel. As it turns out, when analysing our system with quantum mechanics, we need to consider the wave function of the electron. This is essentially linked to the probability distribution of the electron - it gives us information about how likely we are to find the electron in certain locations in space. However the wave function is known as a wave function for a reason - it behaves like a wave! When we solve the Schrodinger equation (the grand equation of quantum mechanics) for a system consisting of an electron encountering a potential barrier that looks like a step, and the electron has less energy than the top of the step barrier, then we find that the wave function of the electron is actually non-zero on the other side of the barrier! This means that despite not having "enough energy" (at least according to classical physics), our electron can still be found on the other side of the potential barrier! Within the potential barrier itself, the wave function displays some interesting behaviour - it looks like an exponentially decaying evanescent wave. Evanescent waves are actually very classical, we've known for ages that electromagnetic waves (for example) can display evanescent behaviour. However, the reason our study is quantum, is because objects we originally believed to be particles (i.e. electrons) can actually behave like waves through their wave functions! Quantum tunnelling has a few useful applications - it is how we explain a large chunk of radioactivity, for example. The principle of quantum tunnelling is also very important in building a Scanning Tunnelling Microscope (something which I described in detail in a video on Higgsino Physics' channel - go check it out). With all that being said, it's great to be back! If you want to follow what I get up to on a more day-to-day basis, follow me on Instagram @parthvlogs

You can configure forced tunneling to route Internet-bound traffic to an additional firewall or network virtual appliance for further processing.

GlobalProtect™ now supports split tunneling based on destination domain, application process name, and video streaming application.

This document describes how to configure the Cisco AnyConnect Secure Mobility Client via the Cisco Adaptive Security Device Manager (ASDM) on a Cisco

A VPN is a private network that uses a public network to connect two or more remote sites. Instead of using dedicated connections between networks, VPNs use virtual connections routed (tunneled) through public networks. IPsec VPN is a protocol, consists of set of standards used to establish a VPN connection.

Nature - Tunnelling-induced Injection in

We propose and analyze the theory of the tunnelling relay, a nanoscale active device in which tunnelling current is modulated by electromechanical actuation of a suspended membrane above a fixed el...

An electro-mechanical setup for the measurement of AC-forces in a low-temperature tunnelling microscope has been developed, which enables extremely high force resolution. The crosstalk of...

For the first time scientists measure the quantum phenomenon on the atomic scale – each electron-escape happened mind-bogglingly fast

Configure the Local Testing setup for your network configurations using Tunnel Firewall.

(2021). AMBER force field parameters for the Zn (II) ions of the tunneling-fold enzymes GTP cyclohydrolase I and 6‐pyruvoyl tetrahydropterin synthase. Journal of Biomolecular Structure and Dynamics: Vol. 39, No. 16, pp. 5843-5860.

A continuous i.-r. absorption observed in solutions containing hydrogen bonds with symmetrical double minimum potential well may be due to tunnelling protons producing a fluctuating field causing attractive proton dispersion force. This decreases for tunnelling frequencies >5 × 10 s since the fluctuating dipole mom

Representing Tunnels in RPSL (Internet-Draft, 1996)

This appendix describes how to set up a GRE Ethernet (Layer 2) tunnel to a RUEI Collector Engine and how to use a tap with this configuration.

Using quantum tunneling, the lab of Shantanu Chakrabartty, at the McKelvey School of Engineering at Washington University in St. Louis, has developed self-powered sensors that can run for more than a year.

Scattering is fundamental to almost everything we know about the world, such as why the sky is blue. Tunnelling is entirely quantum-mechanical and gives rise to such phenomena as nuclear fusion in...

FP4,QUEST,4.3,Institut Superieur D'electronique Du Nord - Recherche(FR),Centre National de la Recherche Scientifique - Delegation Regional Paris B(FR),Université Catholique de Louvain Laboratoire de Microelectronique(BE),Instrumat Sa(FR),Omicron Vakuumphysik Gmbh(DE)

Description By default, FortiGate will only negotiate and try to bring up Phase2 tunnel when 'interesting' traffic is matched to an IPSec policy. In situations where an IPSec tunnel is needed to be up already before traffic passes through a policy, auto-negotiation must be enabled under phase2 sett...

An overview of the QTC basics...

Scientists at the Cavendish Laboratory in Cambridge have used light to help push electrons through a classically impenetrable barrier. While quantum tunnelling is at the heart of the peculiar wave