What Is Voltage Made Of According to Quantum Physics?
Sleep On Physics
123,384 views
What is voltage, really? Not the textbook answer about water flowing through pipes, the real answer. The one that takes you from ancient Greece to quantum electrodynamics, from a philosopher rubbing amber to the discovery that electromagnetic potential is more fundamental than the electric field itself.
A copper wire is already packed with trillions of electrons moving at hundreds of kilometers per second. But they go nowhere, until something invisible reshapes the energy landscape inside the metal. That something is voltage. It's not a substance. It's not a force. It's not energy. It's a difference, a difference in electric potential between two points, and it governs everything from lightning bolts to nerve impulses to the tens of billions of transistors inside your phone.
In this video, we trace voltage from its deepest quantum roots to its role in shaping the universe. You'll learn why energy lives in the electric field rather than inside electrons, how voltage tilts quantum energy bands to create the statistical bias we call current, why electrons can tunnel through barriers they classically shouldn't cross, and how the Aharonov-Bohm effect proved that electromagnetic potential is physically real, not just a mathematical tool. We connect voltage to quantum electrodynamics, magnetars that rip matter from empty space, the biology of consciousness, and the quantum mechanics behind every computer chip ever made.
This is voltage as you've never understood it before.
Sources:
Griffiths, D.J. (2017). Introduction to Electrodynamics (4th Edition). Cambridge University Press.
Kittel, C. (2004). Introduction to Solid State Physics (8th Edition). John Wiley & Sons.
Feynman, R.P. (1985). QED: The Strange Theory of Light and Matter. Princeton University Press.
Tonomura, A., Osakabe, N., Matsuda, T., Kawasaki, T., Endo, J., Yano, S. & Yamada, H. (1986). "Evidence for Aharonov-Bohm effect with magnetic field completely shielded from electron wave." Physical Review Letters, 56(8), 792-795. https://doi.org/10.1103/PhysRevLett.5...
Bardeen, J., Cooper, L.N. & Schrieffer, J.R. (1957). "Theory of Superconductivity." Physical Review, 108(5), 1175-1204. https://doi.org/10.1103/PhysRev.108.1175
#voltage #quantumphysics #electricity #electromagnetism #physics #science #quantummechanics
20 Comments
temperature difference → unequal carrier energies/motion → charge separation → voltage → current
A temperature gradient causes charge carriers to diffuse differently. That creates an electric potential (the Seebeck effect).
What Is Voltage Made Of According to Quantum Physics?
Sleep On Physics
123,384 views
What is voltage, really? Not the textbook answer about water flowing through pipes, the real answer. The one that takes you from ancient Greece to quantum electrodynamics, from a philosopher rubbing amber to the discovery that electromagnetic potential is more fundamental than the electric field itself.
A copper wire is already packed with trillions of electrons moving at hundreds of kilometers per second. But they go nowhere, until something invisible reshapes the energy landscape inside the metal. That something is voltage. It's not a substance. It's not a force. It's not energy. It's a difference, a difference in electric potential between two points, and it governs everything from lightning bolts to nerve impulses to the tens of billions of transistors inside your phone.
In this video, we trace voltage from its deepest quantum roots to its role in shaping the universe. You'll learn why energy lives in the electric field rather than inside electrons, how voltage tilts quantum energy bands to create the statistical bias we call current, why electrons can tunnel through barriers they classically shouldn't cross, and how the Aharonov-Bohm effect proved that electromagnetic potential is physically real, not just a mathematical tool. We connect voltage to quantum electrodynamics, magnetars that rip matter from empty space, the biology of consciousness, and the quantum mechanics behind every computer chip ever made.
This is voltage as you've never understood it before.
Sources:
Griffiths, D.J. (2017). Introduction to Electrodynamics (4th Edition). Cambridge University Press.
Kittel, C. (2004). Introduction to Solid State Physics (8th Edition). John Wiley & Sons.
Feynman, R.P. (1985). QED: The Strange Theory of Light and Matter. Princeton University Press.
Tonomura, A., Osakabe, N., Matsuda, T., Kawasaki, T., Endo, J., Yano, S. & Yamada, H. (1986). "Evidence for Aharonov-Bohm effect with magnetic field completely shielded from electron wave." Physical Review Letters, 56(8), 792-795. https://doi.org/10.1103/PhysRevLett.5...
Bardeen, J., Cooper, L.N. & Schrieffer, J.R. (1957). "Theory of Superconductivity." Physical Review, 108(5), 1175-1204. https://doi.org/10.1103/PhysRev.108.1175
#voltage #quantumphysics #electricity #electromagnetism #physics #science #quantummechanics