Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Langevin Equation for a Dissipative Macroscopic Quantum System: Bohmian
  Theory versus Quantum Mechanics   In this study, we solve analytically the Schrodinger equation for a
macroscopic quantum oscillator as a central system coupled to a large number of
environmental micro-oscillating particles. Then, the Langevin equation is
obtained for the system using two approaches: Quantum Mechanics and Bohmian
Theory. Our results show that the predictions of the two theories are
inherently different in real conditions. Nevertheless, the Langevin equation
obtained by Bohmian approach could be reduced to the quantum one, when the
vibrational frequency of the central system is high enough compared to the
maximum frequency of the environmental particles.

17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg