Quantum mechanics

Detector

Andreev reflection

Shot noise

Computer science

Physics

Amplitude

MAJORANA

Mathematics

Optics

Image (mathematics)

Superconductivity

Condensed matter physics

Artificial intelligence

Dephasing

Combinatorics

Bound state

Topology (electrical circuits)

Noise (video)

Physical Review Letters

The clear-cut experimental identification of Majorana bound states in transport measurements still poses experimental challenges. We here show that the zero-energy Majorana state formed at a junction of three topological superconductor wires is directly responsible for giant shot noise amplitudes, in particular at low voltages and for small contact transparency. The only intrinsic noise limitation comes from the current-induced dephasing rate due to multiple Andreev reflection processes.

Giant Shot Noise from Majorana Zero Modes in Topological Trijunctions