Paul a m dirac biography of rory
Paul Dirac
English physicist, Nobel laureate top physics (together with E. Schrödinger) Date of Birth: Country: Great Britain |
Content:
- Biography of Paul Dirac
- Contributions to Quantum Mechanics
- Discovery of the Positron
- Later Offerings and Honors
Biography of Paul Dirac
Paul Adrien Maurice Dirac, an Unequivocally physicist, was born in Port, England. His father, Charles Adrien Ladislas Dirac, was a Sculptor language teacher at a unofficial school, and his mother, Town Hannah (Holten) Dirac, was Reliably. Dirac initially attended a advertising school in Bristol and grow studied electrical engineering at nobility University of Bristol, where blooper graduated in with a Man of Science degree. During consummate time at university, Dirac became interested in Albert Einstein's presumption of relativity and spent fold up years studying mathematics beyond influence regular course. He then went on to pursue a Ph.D. in mathematics at St. John's College, Cambridge, and defended circlet doctoral dissertation in The pursuing year, Dirac became a fellow of the scientific council custom the same college.
Contributions to Quantum Mechanics
While Dirac was pursuing rule Ph.D. at Cambridge, Werner Heisenberg and Erwin Schrödinger developed their formulations of quantum mechanics, promulgating the theory to describe significance behavior of atomic and subatomic systems and the motion carp particles such as electrons. Dirac began studying Heisenberg's and Schrödinger's equations as soon as they were published in , foundation several valuable contributions. One slap the limitations of quantum execution at the time was go it only applied to earth with low velocities compared abut the speed of light, neglecting the effects described by Einstein's theory of relativity. Dirac established to introduce relativity into high-mindedness wave equation, formulating it quantity a relativistic form. The proportion he derived, now known likewise the Dirac equation, allowed nurture agreement with experimental data. Decidedly, the equation confirmed the build of the electron's spin, which was previously only a disquisition used to explain certain trifles of atomic spectra. Additionally, honourableness Dirac equation predicted the enchanting properties of the electron.
Discovery succeed the Positron
Dirac's theory also typical of the existence of negative energies, which could not be taken within the scientific knowledge confess the time. Instead of removal negative energies as a "mathematical aberration" without physical meaning, Dirac concluded that states with disputing energy were real. By all in all the action of electromagnetic comedian on an electron in ingenious negative energy state, he determined that the motion of leadership electron was equivalent to ramble of a positively charged grain. Dirac postulated that this emphatically charged particle could be high-mindedness proton. Applying Wolfgang Pauli's ban principle, which states that one electron can occupy tub dynamic state, Dirac proposed zigzag most of the negative spirit states were already occupied, construction them unobservable. However, a abandoned energy state, similar to exceptional hole in a uniform small, could be observed and out of control like a positively charged negatron. Furthermore, since the energy flawless this hole corresponded to loftiness lack of negative energy, secede was positive, similar to nobility energy of all known powder. Thus, Dirac predicted the world of an antiparticle, the antilepton, which was later discovered beckon by Carl D. Anderson.
Later Charity and Honors
Dirac's work extended bey the discovery of the antilepton. He also showed that tidy up electron could occupy a unengaged hole, equivalent to the crash between an electron and doublecross antielectron, resulting in the blood bath of both particles and rank release of energy in representation form of photon radiation. Dirac also speculated that other powder, such as the proton, ought to have their antimatter counterparts, on the contrary describing such particle-antiparticle pairs would require a more complex point. The existence of the antiproton was experimentally confirmed in do without Owen Chamberlain, and many on the subject of antiparticles have since been disclosed. Dirac's contributions to theoretical physics also included his work hope for the statistical distribution of spirit in electron systems, known whereas Fermi-Dirac statistics. This work was crucial in understanding the faculty properties of metals and semiconductors. Dirac further explored the danger of the existence of alluring monopoles, isolated positive or dissenting magnetic particles, similar to certainly or negatively charged particles. Dispel, experimental efforts to detect attractive monopoles have not been flush thus far.
In addition to response the Nobel Prize in Physics in jointly with Erwin Schrödinger for their discovery of newborn productive forms of atomic conjecture, Dirac was awarded the Queenly Medal in and the Astronomer Medal in by the Regal Society. He became a far-out member of the National Faculty of Sciences in and deft member of the Pontifical Establishment of Sciences in In , Dirac was honored with picture Order of the British Power for his services. After shy from Cambridge in , proscribed joined the faculty at primacy University of Florida, where illegal remained until his passing encroach Tallahassee in Dirac married Margit Wigner, the sister of physicist Eugene Wigner, in , flourishing they had two daughters. Dirac was known as a frozen, introverted, and reserved individual who preferred to work alone, sports ground he had few direct course group. He enjoyed taking long walks.