Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Yamashita, M. T."'
The signature of an unatomic system is revealed by a continuous scale invariance that appears during a progressive dimensional squeezing of a resonantly interacting trimer. The unatomic regime is reached at the dimension $\overline D$, which for thre
Externí odkaz:
http://arxiv.org/abs/2408.02362
We address the question of the reliability of the Born-Oppenheimer (BO) approximation for a mass-imbalanced resonant three-body system embedded in noninteger dimensions. We address this question within the problem of a system of currently experimenta
Externí odkaz:
http://arxiv.org/abs/2408.01776
We studied the single-particle momentum distribution of mass-imbalanced Efimov states embedded in noninteger dimensions. The contact parameters, which can be related to the thermodynamic properties of the gas, were calculated from the high momentum t
Externí odkaz:
http://arxiv.org/abs/2305.18064
We solved analytically the three-body mass-imbalanced problem embedded in D dimensions for zero-range resonantly interacting particles. We derived the negative energy eigenstates of the three-body Schrodinger equation by imposing the Bethe-Peierls bo
Externí odkaz:
http://arxiv.org/abs/2209.00575
The first excited $J^\pi=0^+$ state of $^{12}$C, the so-called Hoyle state, plays an essential role in a triple-$\alpha$ ($^4$He) reaction, which is a main contributor to the synthesis of $^{12}$C in a burning star. We investigate the Coulomb screeni
Externí odkaz:
http://arxiv.org/abs/2105.03031
The triple alpha reaction is a key to $^{12}$C production and is expected to occur in weakly-coupled, thermal plasmas as encountered in normal stars. We investigate how Coulomb screening affects the structure of a system of three alpha particles in s
Externí odkaz:
http://arxiv.org/abs/2003.08060
Autor:
Yamashita, M. T.
Efimov physics is drastically affected by the change of spatial dimensions. Efimov states occur in a tridimensional (3D) environment, but disappear in two (2D) and one (1D) dimensions. In this paper, dedicated to the memory of Prof. Faddeev, we will
Externí odkaz:
http://arxiv.org/abs/1903.03716
We study a three-body system, formed by two identical heavy bosons and a light particle, in the Born-Oppenheimer approximation for an arbitrary dimension $D$. We restrict $D$ to the interval $2\,<\,D\,<\,4$, and derive the heavy-heavy $D$-dimensional
Externí odkaz:
http://arxiv.org/abs/1806.08638
Autor:
Yamashita, M. T.
These notes were written for a set of three lectures given in a school at the Max Planck Institute for the Physics of Complex Systems in October/2017 before the workshop "Critical Stability of Quantum Few-Body Systems". These lectures are primarily d
Externí odkaz:
http://arxiv.org/abs/1710.11228
Autor:
Sandoval, J. H., Bellotti, F. F., Yamashita, M. T., Frederico, T., Fedorov, D. V., Jensen, A. S., Zinner, N. T.
The quantum mechanical three-body problem is a source of continuing interest due to its complexity and not least due to the presence of fascinating solvable cases. The prime example is the Efimov effect where infinitely many bound states of identical
Externí odkaz:
http://arxiv.org/abs/1708.00012