‎DEJARDIN (G.)‎
‎Les quanta‎

‎La méthode dans la mécanique des Quanta. VI. ‎

‎ Hermann & Cie Editeurs- 6,Rue de la Sorbonne Hermann & Cie Éditeurs- 6, Rue de la Sorbonne, 1935. Broché au format 16x25cm, 62 pages , ensemble remarquablement frais très Bel exemplaire.‎

‎Rare exemplaire -Actualités scientifiques et industrielles fascicule N°283 -Exposé de philosophie des sciences Publié sous la Directuion de L.De Broglie. Très Bon Etat Mise à jour du Samedi 27 Juin 2026. Paiement PayPal immédiat, Mondial Relay pour : France, Allemagne, Autriche, Belgique, Espagne, Italie, Portugal, Luxembourg, Pays-Bas, Pologne (Communiquer votre point ou locker si connu). Une participation supplémentaire peut être demandée pour les colis lourds hors France où les envois compris entre 5 et 25 kg sont dégressifs : 2 à 4 kilogrammes - 7.99 / 5 à 10 kg - 15.99 / 15 -25 kg - 25.99. Certaines de nos collections ( Vian, Céline, Camus (...) peuvent être expédiées en Franco de port. Pour linternational hors Europe (Suisse, Canada, Japon, Etats-Unis, les frais dexpéditions peuvent varier selon le poids (mise à jour : 1 juin 2026). ‎

‎Pour la science-n°11 Mai 2002-août 2002 Einstein- Sommaire: Un emblème méconnu, Naissance d'une vocation- Ether, atomes et quanta- Lumière et atomes- Espace, temps et vitesse- Espace, temps et gravitation- La cosmologie- Des quanta aux photons- Einstein n‎

‎CNRS. 2002. In-4. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 96 pages illustrées de photos et illustrations en couleurs et en noir et blanc, dans le texte. Dossier de coupures de presse sur Einstein.. . . . Classification Dewey : 70.49-Presse illustrée, magazines, revues‎

‎Sommaire: Un emblème méconnu, Naissance d'une vocation- Ether, atomes et quanta- Lumière et atomes- Espace, temps et vitesse- Espace, temps et gravitation- La cosmologie- Des quanta aux photons- Einstein n'accepte pas la mécanique quantique- La vie américaine- L'héritage d'Einstein- etc. Classification Dewey : 70.49-Presse illustrée, magazines, revues‎

‎La théorie des Quanta , l'atome de Bohr‎

‎ 1931 La mecanique analytique et les quanta , les spectres de Multiplets . Paris, P.U.F., volume 19, 1931, in-8, 363 pp., toile grise imp. (Rel. de l'éd.).Bon etat ‎

‎Ondes et quanta. Note de M. Louis de Broglie, présentée par M. Jean Perrin. (Séance du 10 Septembre 1923). (+) Quanta de lumière, diffraction et interférences. Note de M. Louis de Broglie, transmise par M. Jean Perrin. (Séance du 24 Septembre 1923). (...‎

‎Paris, Gauthier-Villars et Cie, 1923. 4to. Bound in 2 contemp. full cloth. Spines gilt and with gilt lettering. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 177. With htitle a. titlepage. 1513 pp. (Entire volume offered). De Broglie's papers: pp. 507-510, pp. 548-551 a. pp. 630-32. Clean and fine. A stamp to verso of titlepage.‎

‎First edition of these papers which ESTABLISHED A NEW ERA IN PHYSICS by introducing the epochal new principle that particle-wave duality should apply not only to radiation but also to matter and thus CREATING QUANTUM MECHANICS. These 3 papers were extended to form his doctoral thesis of 1924 ""Recherches sur la Théorie des Quanta.""De Broglie relates ""After long reflection in solitude and meditation, I suddenly had the idea, during the year 1923, that the discovery made by Einstein in 1905 should be generalized by extending it to all material particles and notably to electrons"" (Preface to his PhD thesis 1924).""He made the leap in his September 10, 1923, paper: E=hv should hold not only for photons but also for electrons, to which he assigns a 'fictitious associated wave'. In his September 24 paper, he indicated the direction in which one 'should seek experimental confirmations of our ideas': a stream of electrons traversing an aperture whose dimensions are small compared with the wavelenght of the electron waves 'should show diffraction phenomena' .""(Pais ""Subtle is the Lord"", pp. 425-436).In the third paper (October 8) he discusses ""The interplay between the propagation of the particle and of the waves could be expressed in more formal terms as an identity between the fundamental variational principles of Pierre de Fermat (rays), and Pierre Louis Maupertuis (particles) as de Broglie discussed it further in his last communication . Therein he also considered some thermodynamic consequences of his generalized wave-particle duality. He showed in particular how one could, using Lord Rayleigh’s 1900 formula for the number of stationary modes for phase waves, obtain Planck’s division of the mechanical phase space into quantum cells.Louis de Broglie achieved a worldwide reputation for his discovery of the wave theory of matter, for which he received the Nobel Prize for physics in 1929. His work was extended into a full-fledged wave mechanics by Erwin Schrödinger and thus contributed to the creation of quantum mechanics. After an early attempt to propose a deterministic interpretation of his theory, de Broglie joined the Copenhagen school’s mainstream noncausal interpretation of the quantum theory.""(DSB).""This idea [i.e. de Broglie's that matter might behave as waves] was tested and confirmed by Davisson and Germer in 1927... Thus the duality of both light and matter had been established, and physicists had to come to terms with fundamental particles which defied simple theories and demanded two sets of 'complementary' descriptions, each applicable under certain circumstances, but incompatible with one another."" (Printing and the Mind of Man, 417). ‎

‎Ondes et quanta. Note de M. Louis de Broglie, présentée par M. Jean Perrin. (Séance du 10 Septembre 1923). (+) Quanta de lumière, diffraction et interférences. Note de M. Louis de Broglie, transmise par M. Jean Perrin. (Séance du 24 Septembre 1923). (...‎

‎Paris, Gauthier-Villars et Cie, 1923. 4to. Bound in one contemp. full buckram. Spines gilt and with gilt lettering. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 177. Bound with orig. printed front-wrapper to No. 1, half-title and title-page to vol. 177. 1513 pp. (Entire volume offered). De Broglie's papers: pp. 507-510, pp. 548-551 a. pp. 630-32. Clean and fine. A punched stamp on foot of title-page.‎

‎First edition of these papers which ESTABLISHED A NEW ERA IN PHYSICS by introducing the epochal new principle that particle-wave duality should apply not only to radiation but also to matter and thus CREATING QUANTUM MECHANICS. These 3 papers were extended to form his doctoral thesis of 1924 ""Recherches sur la Théorie des Quanta.""De Broglie relates ""After long reflection in solitude and meditation, I suddenly had the idea, during the year 1923, that the discovery made by Einstein in 1905 should be generalized by extending it to all material particles and notably to electrons"" (Preface to his PhD thesis 1924).""He made the leap in his September 10, 1923, paper: E=hv should hold not only for photons but also for electrons, to which he assigns a 'fictitious associated wave'. In his September 24 paper, he indicated the direction in which one 'should seek experimental confirmations of our ideas': a stream of electrons traversing an aperture whose dimensions are small compared with the wavelenght of the electron waves 'should show diffraction phenomena' .""(Pais ""Subtle is the Lord"", pp. 425-436).In the third paper (October 8) he discusses ""The interplay between the propagation of the particle and of the waves could be expressed in more formal terms as an identity between the fundamental variational principles of Pierre de Fermat (rays), and Pierre Louis Maupertuis (particles) as de Broglie discussed it further in his last communication . Therein he also considered some thermodynamic consequences of his generalized wave-particle duality. He showed in particular how one could, using Lord Rayleigh’s 1900 formula for the number of stationary modes for phase waves, obtain Planck’s division of the mechanical phase space into quantum cells.Louis de Broglie achieved a worldwide reputation for his discovery of the wave theory of matter, for which he received the Nobel Prize for physics in 1929. His work was extended into a full-fledged wave mechanics by Erwin Schrödinger and thus contributed to the creation of quantum mechanics. After an early attempt to propose a deterministic interpretation of his theory, de Broglie joined the Copenhagen school’s mainstream noncausal interpretation of the quantum theory.""(DSB).""This idea [i.e. de Broglie's that matter might behave as waves] was tested and confirmed by Davisson and Germer in 1927... Thus the duality of both light and matter had been established, and physicists had to come to terms with fundamental particles which defied simple theories and demanded two sets of 'complementary' descriptions, each applicable under certain circumstances, but incompatible with one another."" (Printing and the Mind of Man, 417). ‎