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Classical and Quantum Vacuum. Dr. Z.E. Musielak Department of Physics University of Texas at Arlington. OUTLINE. Classical Vacuum General Relativity (GR) and Its Vacuum Quantum Mechanics (QM) and Its Vacuum Quantum Field Theory (QFT) and Its Vacuum. Classical Vaccum.
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Classical and Quantum Vacuum Dr. Z.E. Musielak Department of Physics University of Texas at Arlington
OUTLINE • Classical Vacuum • General Relativity (GR) and Its Vacuum • Quantum Mechanics (QM) and Its Vacuum • Quantum Field Theory (QFT) and Its Vacuum
Classical Vaccum Void, nothingness or empty space. Galileo (1638) and Torricelli (1643) Boyle (1645) and Pascal (1647) Von Guericke (1654) Newton (1670) and Leibnitz (1675)
Classical Vaccum with Ether Ether in otherwise empty space. Maxwell (1865) Michelson and Morley (1887) Lorentz (1895) Einstein (1905)
Maxwell’sUnification • In 1865, James Clerk Maxwell unified the laws of electricity and magnetism into one electromagnetic theory • The speed of light c is the fundamental speed of the theory
Light as Electromagnetic Wave Maxwell (1859)
Einstein’s Special Theory of Relativity • In 1905, Albert Einstein introduced Special Theory of Relativity. • Ether does not exist!
General Theory of Relativity Einstein (1915) developed the theory and established the field equations that describe how geometry of spacetime is determined by the distribution of matter and energy.
Curved Space-Time Einstein (1915)
The Cosmological Constant Einstein (1916) added a constant Λ to his field equations – the constant describes additional tension of spacetime (repulsive force) acting against gravity.
Quantum Field Theory (QFT) P.A.M. Dirac(1902-1986)
Quantum Field Theory (QFT) Virtual Processes
VACUUM ENERGY DENSITY All estimates based on QFT First: Infinity Second: 10123 Third: 1055 Supersymmetry effects included in the last estimate!
Anybody who knows EVERYTHING about NOTHING knows EVERYTHING