Academic literature on the topic 'Ansatz gaussian'
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Journal articles on the topic "Ansatz gaussian"
Wang, Meng-Jong. "The Gaussian ansatz and beyond." Il Nuovo Cimento A 104, no. 3 (March 1991): 449–52. http://dx.doi.org/10.1007/bf02799149.
Full textGUPTA, SOURENDU, and A. IRBÄCK. "FINITE SIZE SCALING ON THE ISING COEXISTENCE LINE." International Journal of Modern Physics C 03, no. 05 (October 1992): 1119–24. http://dx.doi.org/10.1142/s0129183192000749.
Full textDinda, P. Tchofo, K. Nakkeeran, and A. B. Moubissi. "Optimized Hermite-gaussian ansatz functions for dispersion-managed solitons." Optics Communications 187, no. 4-6 (January 2001): 427–33. http://dx.doi.org/10.1016/s0030-4018(00)01135-4.
Full textBISWAS, S., A. SHAW, and D. BISWAS. "SCHRÖDINGER–WHEELER–DEWITT EQUATION IN MULTIDIMENSIONAL COSMOLOGY." International Journal of Modern Physics D 10, no. 04 (August 2001): 585–93. http://dx.doi.org/10.1142/s0218271801001372.
Full textBISWAS, S., A. SHAW, and B. MODAK. "TIME IN QUANTUM GRAVITY." International Journal of Modern Physics D 10, no. 04 (August 2001): 595–606. http://dx.doi.org/10.1142/s0218271801001384.
Full textPreuss, Roland, and Udo von Toussaint. "Outlier-Robust Surrogate Modeling of Ion–Solid Interaction Simulations." Entropy 25, no. 4 (April 19, 2023): 685. http://dx.doi.org/10.3390/e25040685.
Full textWu, Shu-Guang, and Yang Zhang. "The Nonlinear Field Equation of the Three-point Correlation Function of Galaxies: to the Second Order of Density Perturbation." Research in Astronomy and Astrophysics 22, no. 4 (March 31, 2022): 045015. http://dx.doi.org/10.1088/1674-4527/ac55ff.
Full textRaab, Benedikt, Thomas Srdinko, and Helmut Leeb. "Formulation of Model Defects Suitable for the Resonance Regime." EPJ Web of Conferences 211 (2019): 07006. http://dx.doi.org/10.1051/epjconf/201921107006.
Full textDarewych, J. W., and A. D. Polozov. "Variational solution of bound states in a charged interacting scalar-field theory." Canadian Journal of Physics 66, no. 11 (November 1, 1988): 969–71. http://dx.doi.org/10.1139/p88-155.
Full textPERCUS, J. K. "INTERFACE STRUCTURE." International Journal of Modern Physics B 13, no. 05n06 (March 10, 1999): 659–66. http://dx.doi.org/10.1142/s0217979299000552.
Full textDissertations / Theses on the topic "Ansatz gaussian"
Trifa, Youssef. "Dynamiques de corrélations et d'intrication dans des gaz d'atomes froids." Electronic Thesis or Diss., Lyon, École normale supérieure, 2024. http://www.theses.fr/2024ENSL0018.
Full textThe quantum many-body problem, and especially the study of dynamical properties of a multipartite quantum system, is one of the hardest problems of modern physics. There exist only a few analytical results and exact numerical simulations require an amount of resources that grow exponentially with the system size.In this thesis, we studied correlations and entanglement properties for systems composed of magnetic atoms on a lattice, for instance via the generation of spin squeezing. For this purpose we have developed new approximate numerical methods that allow us to study large system sizes. This enabled us to propose protocols to generate an amount of spin squeezing that scales with the system size. The advantage is twofold. Since spin squeezing is an entanglement witness, this would allow for entanglement detection in a system of magnetic atoms - which has yet to be realized experimentally. Moreover, spin squeezing offers an important metrological advantage, asspin-squeezed states can be used for extremely precise measurements of external magnetic fields, far beyond what one can achieve within dependent atoms.Finally, we studied the generation of other forms of entanglement, namely Dicke squeezing (of spin or momentum), in systems of Bose condensed atoms. This form of entanglement is well-known in spin-1 atomic condensates. Here, we propose a protocol to generalize it to the case of momentum modes, using a time-dependent Hamiltonian. The entangled states generated during the dynamics are potentially useful for the precision measurements of inertial forces
Werther, Michael [Verfasser], Jan Carl [Gutachter] Budich, Uwe [Gutachter] Manthe, and Frank [Akademischer Betreuer] Großmann. "The multi Davydov-Ansatz : Apoptosis of moving Gaussian basis functions with applications to open quantum system dynamics / Michael Werther ; Gutachter: Jan Carl Budich, Uwe Manthe ; Betreuer: Frank Großmann." Dresden : Technische Universität Dresden, 2020. http://d-nb.info/1231917431/34.
Full textWerther, Michael. "The multi Davydov-Ansatz: Apoptosis of moving Gaussian basis functions with applications to open quantum system dynamics." 2020. https://tud.qucosa.de/id/qucosa%3A72405.
Full textBook chapters on the topic "Ansatz gaussian"
Darewych, Jurij W., Marko Horbatsch, and Roman Koniuk. "Variational Calculations of Particle Masses in Quantum Field Theory: Beyond the Simplest Gaussian Ansatz." In Variational Calculations In Quantum Field Theory, 172–87. WORLD SCIENTIFIC, 1988. http://dx.doi.org/10.1142/9789814390187_0015.
Full textConference papers on the topic "Ansatz gaussian"
Labruyère, A., P. Tchofo Dinda, A. B. Moubissi, K. Nakkeeran, Y. H. C. Kwan, and P. K. A. Wai. "Analytical design of 160 Gbits/s densely dispersion-managed optical fiber transmission systems using Gaussian and raised cosine RZ ansätze." In Nonlinear Guided Waves and Their Applications. Washington, D.C.: OSA, 2004. http://dx.doi.org/10.1364/nlgw.2004.mc45.
Full textSmith, Michael C., Ondrej Mura´nsky, Philip J. Bendeich, and Lyndon Edwards. "The Impact of Key Simulation Variables on Predicted Residual Stresses in Pressuriser Nozzle Dissimilar Metal Weld Mock-Ups: Part 1—Simulation." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-26023.
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