226 research outputs found
PoluklasiÄna teorija spontane emisije zraÄenja
A nonrelativistic semiclassical theory of the radiation reaction interaction is developed. It is applied to the spontaneous emission of radiation from excited states of a hydrogen-like atom.Razvijena je nerelativistiÄka poluklasiÄna teorija radijacijske sile zraÄenja. Primjenjena je na opis spontane emisije zraÄenja s pobuÄenog stanja atoma poput vodikovog
PoluklasiÄna teorija spontane emisije zraÄenja
A nonrelativistic semiclassical theory of the radiation reaction interaction is developed. It is applied to the spontaneous emission of radiation from excited states of a hydrogen-like atom.Razvijena je nerelativistiÄka poluklasiÄna teorija radijacijske sile zraÄenja. Primjenjena je na opis spontane emisije zraÄenja s pobuÄenog stanja atoma poput vodikovog
Analiza prijenosa energije u meÄudjelovanju Äestice i polja
In this work we have analyzed dynamics of a particle in the one dimensional model of the plane electromagnetic wave. Our particular interest was to show that classical theory can describe this dynamics very well, and gives the correct momentum distribution of particle which depends on the frequency of the field as well as on its amplitude.U ovom radu smo analizirali interakciju Äestice i ravnog elektromagnetskog vala. Koristili smo jednodimenzionalnu aproksimaciju. Pokazali smo da u takvoj aproksimaciji, klasiÄna teorija u potpunosti opisuje prijenos energije, te daje respodjelu impulsa koja ovisi prvenstveno o frekvenciji polja
Princip neoÄredenosti u klasiÄnoj mehanici: primjena na kolinearne sudare
Classical theory of collisions is formulated which also includes uncertainty principle. The theory is used for the calculation of transition probabilities in the collinear He-H2 collision, and the results are compared with quantum calculations. Very good agreement is found.KlasiÄna teorija sudara formulirana je uz uvažavanje principa neodredenosti. IzraÄunali smo prijelazne vjerojatnosti za kolinearni sudar He-H2 i usporedili rezultate s kvantnim proraÄunima. PronaÅ”li smo vrlo dobro slaganje
Analiza prijenosa energije u meÄudjelovanju Äestice i polja
In this work we have analyzed dynamics of a particle in the one dimensional model of the plane electromagnetic wave. Our particular interest was to show that classical theory can describe this dynamics very well, and gives the correct momentum distribution of particle which depends on the frequency of the field as well as on its amplitude.U ovom radu smo analizirali interakciju Äestice i ravnog elektromagnetskog vala. Koristili smo jednodimenzionalnu aproksimaciju. Pokazali smo da u takvoj aproksimaciji, klasiÄna teorija u potpunosti opisuje prijenos energije, te daje respodjelu impulsa koja ovisi prvenstveno o frekvenciji polja
Study of Collinear Collision in Impulsive Model
Exact quantum solution of the collinear collision problem is found in the impulsive model. The transition probabilities compare well with those for real systems, except when multiple collisions become important
Princip neoÄredenosti u klasiÄnoj mehanici: primjena na kolinearne sudare
Classical theory of collisions is formulated which also includes uncertainty principle. The theory is used for the calculation of transition probabilities in the collinear He-H2 collision, and the results are compared with quantum calculations. Very good agreement is found.KlasiÄna teorija sudara formulirana je uz uvažavanje principa neodredenosti. IzraÄunali smo prijelazne vjerojatnosti za kolinearni sudar He-H2 i usporedili rezultate s kvantnim proraÄunima. PronaÅ”li smo vrlo dobro slaganje
Analytic pulse design for selective population transfer in many-level quantum systems: maximizing amplitude of population oscillations
State selective preparation and manipulation of discrete-level quantum
systems such as atoms, molecules or quantum dots is a the ultimate tool for
many diverse fields such as laser control of chemical reactions, atom optics,
high-precision metrology and quantum computing. Rabi oscillations are one of
the simplest, yet potentially quite useful mechanisms for achieving such
manipulation. Rabi theory establishes that in the two-level systems resonant
drive leads to the periodic and complete population oscillations between the
two system levels. In this paper an analytic optimization algorithm for
producing Rabi-like oscillations in the general discrete many-level quantum
systems is presented.Comment: Published in Phys.Rev.A. This is the final published versio
- ā¦