Physics

Invitations to Contemporary Physics by Q. Ho-Kim, C. S. Lam, N. Kumar

By Q. Ho-Kim, C. S. Lam, N. Kumar

This thoroughly revised moment version of our highly well known booklet invitations the reader to discover ten of crucial parts of contemporary physics: Symmetry, Lasers, Superconductivity, Bose–Einstein Condensation, Nanoscience, Quantum Computation, Chaos and Fractals, Stellar Evolution, debris, and Cosmology.

The new version provides 3 new chapters in a few 3rd of the e-book, overlaying the most recent, preferred issues in modern physics: Bose–Einstein Condensate: the place Many turn into One and the way to Get There: Bose information: Counting of the Indistinguishables; Bose–Einstein Condensation (BEC): The Over-Population situation; Cooling and Trapping of Atoms: in the direction of BEC; Doppler restrict and its holiday Down; Trapping of chilly Atoms: Magnetic and Magneto-Optic catch; Evaporative Cooling; BEC eventually: yet How will we Know?; BEC: What stable is it? Exploring Nanostructures: in the direction of the ground; the increase of Nanoscience; restricted structures; Quantum units; The Genius of Carbon; Spintronics; Nanos at huge. Quantum Computation and data: Classical computing device; Quantum computing device; Quantum Gates; Deutsch's set of rules; discovering the interval of a functionality; Shor's Factorization set of rules; Grover's seek set of rules; and mistake Correction; Cryptography; Quantum Teleportation.

The authors provide a desirable, updated account of the intriguing advances in those fast-moving fields. Their emphasis is as a lot on describing ordinary phenomena as on trying to clarify them when it comes to easy ideas, changing equations with actual perception. common readers and college undergraduates alike will locate this distinct e-book an invaluable advisor to the worlds of contemporary physics, whereas the mature scientist gets an insightful survey of neighboring fields of study. For the instructor who takes a thematic method of instructing physics, this publication should be a whole resource of present themes on the frontiers of analysis; and for the scholar, a precious device of analysis, made much more precious by way of a variety of pertinent difficulties (with entire options) and references came upon on the finish of every bankruptcy.

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Elements de Mécanique quantique - Tome 1

I Les origines de los angeles Th´eorie quantique
I. 1. Les ideas de l. a. body classique
(I. 1. 1) constitution corpusculaire de los angeles mati`ere
(I. 1. 2) Nature ondulatoire de los angeles lumi`ere
(I. 1. three) Le d´eterminisme de los angeles body classique
I. 2. Ondes ´electromagn´etiques et quanta de lumi`ere
I. three. los angeles nature ondulatoire de l. a. mati`ere
(I. three. 1) Les spectres de raies et les ondes de Louis de Broglie
(I. three. 2) Description quantique d’une particule libre : le paquet d’ondes
I. four. Dualit´e onde-corpuscule de l. a. lumi`ere et de los angeles mati`ere
I. five. Exercices sur les bases exp´erimentales de los angeles m´ecanique quantique
II Syst`emes quantiques simples
II. 1. Etat quantique d’une particule libre
(II. 1. 1) Fonction d’onde
(II. 1. 2) Courant de probabilit´e
(II. 1. three) Valeur moyenne et ´ecart quadratique moyen
(II. 1. four) Op´erateur “impulsion” dans l’espace des coordonn´ees
II. 2. Particule dans un potentiel ind´ependant du temps
(II. 2. 1) suggestions stationnaires
(II. 2. 2) Quantification de l’´energie
II. three. los angeles barri`ere de potentiel finie : l’effet tunnel
II. four. Le puits quantique
II. five. L’oscillateur harmonique
(II. five. 1) M´ethode de r´esolution polynˆomiale
(II. five. 2) M´ethode des op´erateurs de cr´eation et de destruction
II. 6. Appendice : Fonction g´en´eratrice des polynˆomes d’Hermite et oscillateur harmonique
(II. 6. 1) Orthonormalit´e des fonctions 'n(x) de l’oscillateur harmonique
(II. 6. 2) Valeurs moyennes et probabilit´e de transition
III Fondements de l. a. th´eorie quantique
III. 1. Equation de Schr¨odinger et ses propri´et´es
(III. 1. 1) Spectre de l’op´erateur hamiltonien et element de vue du calcul vectoriel
(III. 1. 2) Le vecteur d’´etat de l’espace d’Hilbert E et ses propri´et´es
(III. 1. three) Repr´esentation des coordonn´ees |ri
(III. 1. four) Repr´esentation des impulsions |pi
(III. 1. five) formula matricielle : Repr´esentation des ´etats d’´energie
(III. 1. 6) D´eg´en´erescence d’un niveau d’´energie
III. 2. constitution de l’espace de Hilbert "H et produits tensoriels d’espaces
III. three. Le processus de mesure et sa description quantique
(III. three. 1) Commutateurs et grandeurs physiques simultan´ement mesurables
(III. three. 2) Grandeurs physiques non simultan´ement mesurables : G´en´eralisation des relatives d’incertitude
de Heisenberg
III. four. L’´equation d’´evolution
III. five. Les diff´erents sch´emas en m´ecanique quantique
(III. five. 1) Le sch´ema de Schr¨odinger
(III. five. 2) Le sch´ema de Heisenberg
(III. five. three) Le sch´ema d’interaction
III. 6. L’op´erateur de densit´e
III. 7. Int´egrale premi`ere et sym´etrie
(III. 7. 1) Observables compatibles et constantes du mouvement
(III. 7. 2) Sym´etrie et constante du mouvement
(III. 7. three) G´en´erateur d’une transformation de sym´etrie
(III. 7. four) Sym´etrie de translation
III. eight. Sym´etrie par rapport aux diversifications de particules identiques, les “bosons” et les “fermions”
III. nine. M´ethodes d’approximation pour l. a. r´esolution de l’´equation de Schr¨odinger
(III. nine. 1) Th´eorie de perturbation
(III. nine. 2) M´ethode variationnelle lin´eaire
III. 10. Conclusions : Postulats de los angeles body quantique
III. eleven. Appendice : Le cadre math´ematique de l’espace de Hilbert "H
IV Les moments angulaires en th´eorie quantique
IV. 1. Fonctions propres et valeurs propres du second cin´etique orbital : M´ethode polynˆomiale
IV. 2. Sym´etrie de rotation et second angulaire
IV. three. M´ethode alg´ebrique : Les op´erateurs d’´echelle
IV. four. Repr´esentation matricielle des op´erateurs du second angulaire
IV. five. Le spin d’une particule
(IV. five. 1) Le second magn´etique de l’´electron
(IV. five. 2) Exp´erience de Stern et Gerlach
(IV. five. three) Vecteur d’´etat et op´erateur de spin
(IV. five. four) Pr´ecession du spin dans un champ magn´etique
(IV. five. five) Composition de deux moments angulaires
IV. 6. Appendice : Fonctions sp´eciales associ´ees au second angulaire
(IV. 6. 1) Polynˆomes de Legendre
(IV. 6. 2) Les harmoniques sph´eriques
V Particules dans un champ de strength central
V. 1. Le probl`eme de deux particules en th´eorie quantique
(V. 1. 1) Potentiel `a sym´etrie sph´erique
(V. 1. 2) Vibrations et rotations d’une mol´ecule
V. 2. L’atome hydrog´eno¨ıde
(V. 2. 1) Fonction d’onde totale et ses propri´et´es
V. three. constitution superb des atomes alcalins
(V. three. 1) Interactions spin-orbite
(V. three. 2) Corrections relativistes
V. four. Effet de Zeeman des atomes alcalins
(V. four. 1) Atome plac´e dans un champ magn´etique quelconque
(V. four. 2) Effet Zeeman anomal
(V. four. three) Effet Paschen-Back
V. five. Etats quantiques de los angeles mol´ecule diatomique
V. 6. Appendice : Propri´et´es des fonctions sp´eciales de l’atome hydrog´eno¨ıde
(V. 6. 1) Les polynˆomes de Laguerre associ´es
VI Transitions entre ´etats stationnaires
VI. 1. Mouvement d’une particule charg´ee soumise `a un champ ´electromagn´etique
(VI. 1. 1) Le hamiltonien du syst`eme
(VI. 1. 2) motion d’un champ magn´etique constant
(VI. 1. three) Invariance de jauge
VI. 2. Perturbations non stationnaires
(VI. 2. 1) R`egle d’or de Fermi
VI. three. Le rayonnement dipolaire
VI. four. Corrections multipolaires
VI. five. Expression quantique des coefficients d’Einstein
VI. 6. Coefficients d’absorption
VI. 7. R`egles de s´election et le spectre optique d’atome `a un ´electron
(VI. 7. 1) Les r`egles de s´election d’un oscillateur harmonique et d’un atome hydrog´eno¨ıde r´ealiste
VII advent `a l. a. th´eorie quantique non-relativiste des syst`emes
de particules identiques
VII. 1. Le formalisme g´en´eral
VII. 2. program `a l’atome d’h´elium
(VII. 2. 1) interplay d’´echange et magn´etisme
VII. three. L’approximation du champ self-consistant de Hartree et de Hartree-Fock
VIII creation `a los angeles th´eorie quantique de los angeles diffusion par un
potentiel
VIII. 1. part efficace de diffusion
(VIII. 1. 1) part efficace diff´erentielle dans le syst`eme du laboratoire
(VIII. 1. 2) Interpr´etation classique et loi de Rutherford
VIII. 2. Traitement stationnaire
(VIII. 2. 1) Equation int´egrale de l. a. diffusion et resolution “approch´ee” : “Approximation de Born”
(VIII. 2. 2) Le r`egle d’Or de Fermi et l’approximation de Born
(VIII. 2. three) M´ethode des ondes partielles
Livres de r´ef´erence
– J. L. Basdevant, M´ecanique quantique, ellipses, 1986.
– J. Hladik, M´ecanique quantique, ´editions Masson, Paris, 1997.
Bibliographie
– D. Blokintsev, Principes de m´ecanique quantique, ´editions Mir, Moscou, 1981.
– J. M. L´evy-Leblond, F. Balibar, Quantique. Rudiments, Inter-Editions, Paris, 1984.
– Cl. Cohen-Tannoudji, B. Diu, F. Lalo¨e, M´ecanique quantique, tomes I & II, Hermann, 1980.
– E. Merzbacher, Quantum Mechanics, John Wiley, third ed. , 1998.
– S. Gasiorowicz, Quantum Physics, John Wiley, 1997.
– L. D. Landau, E. M. Lifshitz, Quantum Mechanics, Pergamon Press, third ed. , 1981.
– V. okay. Thankappan, Quantum Mechanics, John Wiley, second ed. , 1993.
– A. B. Wolbarst, Symmetry and Quantum Mechanics, Van Nostrand Reinhold Comp. , 1977.
– W. Louisell, Radiation and noise in Quantum Electronics, McGraw-Hill, 1964.
– A. Z. Capri, Nonrelativistic Quantum Mechanics, Benjamin/Cummings, 1985.
– J. J. Sakurai, sleek Quantum Mechanics, Benjamin/Cummings, 1985.
– W. Greiner, B. M¨uller, Quantum Mechanics, vol. I & II, Hermann, 1980.
– T. Fliessbach, Quantenmechanik, Spektrum Akademischer Verlag, 1995.
– R. W. Robinett, Quantum Mechanics, Oxford college Press, 1997.

Extra info for Invitations to Contemporary Physics

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A quantity is said to be conserved if its total value for the reactants x + y is the same as its total value for the products z + w of the process as observed in a given Galilean frame. Thus we speak of conservation of energy, linear momentum and of angular momentum. It turns out that the conservation of energy follows from the invariance with respect to translation in time. The conservation of linear momentum follows from the invariance with respect to translation in space (homogeneity of space).

Note that space reflection actually means inversion through the origin — that is letting (x, y, z) go to (−x, −y, −z). In three-dimensional space, however, the inversion through the origin and the reflection in a mirror are related through a mere rotation by 180 degrees about an axis perpendicular to the mirror plane. And, of course, the rotation symmetry is not in doubt). Take an atom of cobalt, the isotope 60 Co to be precise. The nucleus of 60 Co has a spin. It is like a spinning top. This makes it a tiny magnet with the magnetic poles on the spin axis.

These correspond to the two possible relations between the circular and the linear arrows. Let us give them February 6, 2004 22 15:16 Book: Invitation to Contemporary Physics (2nd Edition) Symmetry of Nature and Nature of Symmetry names. Suppose that you clasp the screw in your right hand with your fingers pointing in the direction of the circular arrow while your thumb stays parallel to the axis of the screw. Now, if your thumb points in the direction of the linear arrow, then the screw is said to be right-handed.

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