Superconductivity by quantum tunneling?

Stanley514
Messages
404
Reaction score
2
We have some material with metal atoms inserted in substrate.Maybe by dopping.
Electric current is able to move only be quantum tunneling jumping from atom to atom.
Could we obtain superconductor in this way?
 
Physics news on Phys.org
No. Classic superconductivity requires long-range order and cooperation between electrons in a pair, as mediated by phonons. Look up the BCS Theory.
 
What exactly will happen to quantum tunneling conductivity?
What properties would it have?
 
The most common example of electron tunneling isn't between occasional isolated atoms, but between two metals separated by a thin insulating layer. A grasp of quantum mechanics is needed to understand the effect. Suggest you pick up an elementary QM text (the old one by E. Anderson is good, otherwise Griffiths is the current standard) and start there.
 
Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...
Back
Top