# Who discovered quantum tunneling?

## Who discovered quantum tunneling?

Nearly 100 years ago, Swedish physicist Oskar Klein first predicted this phenomenon.

## What is the probability of quantum tunneling?

To find the probability of quantum tunneling, we assume the energy of an incident particle and solve the stationary Schrӧdinger equation to find wave functions inside and outside the barrier. The tunneling probability is a ratio of squared amplitudes of the wave past the barrier to the incident wave.

**Are Tachyons real?**

Tachyons have never been found in experiments as real particles traveling through the vacuum, but we predict theoretically that tachyon-like objects exist as faster-than-light ‘quasiparticles’ moving through laser-like media. “We are beginning an experiment at Berkeley to detect tachyon-like quasiparticles.

**Is quantum tunneling possible for humans?**

So once again, for a human being the answer is: almost impossible. However for objects with extremely small masses (such as electrons) the probability can be quite high.

### Who found tachyon?

Gerald Feinberg

Tachyons were first introduced into physics by Gerald Feinberg, in his seminal paper “On the possibility of faster-than-light particles” [Phys. Rev. 159, 1089—1105 (1967)].

### How does quantum tunneling relate to quantum mechanics?

No sooner had the radical equations of quantum mechanics been discovered than physicists identified one of the strangest phenomena the theory allows. “Quantum tunneling” shows how profoundly particles such as electrons differ from bigger things.

**Why is tunneling important for small mass particles?**

, a phenomenon by which particles can pass through a potential well. even when classically they don’t have the energy to do so. . Tunneling is a quantum mechanical phenomenon, and thus is important for small mass particles in which classical laws break down (e.g. important for electrons, but not so much for ions or atoms).

**How are Josephson junctions used in quantum tunneling?**

Josephson junctions consist of two superconductors separated by a very thin layer of non-superconducting material, which can be an insulator, a non-superconducting metal, or a physical defect. The superconducting current can tunnel across the barrier, and the electrical properties of this system are very precisely defined.

#### Why did people start to worry about tunneling time?

“After the Hartman effect, that’s when people started to worry,” said Steinberg. The discussion spiraled for decades, in part because the tunneling-time question seemed to scratch at some of the most enigmatic aspects of quantum mechanics.