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December  2013, 6(4): 671-686. doi: 10.3934/krm.2013.6.671

A Milne problem from a Bose condensate with excitations

Leif Arkeryd 1, and  Anne Nouri 2,

1. 

Mathematical Sciences, 41296 Göteborg, Sweden
2. 

LATP, Aix-Marseille University, France

Received  March 2013 Revised  June 2013 Published  November 2013

This paper deals with a half-space linearized problem for the distribution function of the excitations in a Bose gas close to equilibrium. Existence and uniqueness of the solution, as well as its asymptotic properties are proven for a given energy flow. The problem differs from the ones for the classical Boltzmann and related equations, where the hydrodynamic mass flow along the half-line is constant. Here it is no more constant. Instead we use the energy flow which is constant, but no more hydrodynamic.
Keywords: Milne problem., Low temperature kinetics, Bose condensate, two component model.
Mathematics Subject Classification: 81V99, 82C10, 82C22, 82C4.
Citation: Leif Arkeryd, Anne Nouri. A Milne problem from a Bose condensate with excitations. Kinetic & Related Models, 2013, 6 (4) : 671-686. doi: 10.3934/krm.2013.6.671
References:
[1]

L. Arkeryd and A. Nouri, Bose condensates in interaction with excitations - a kinetic model,, Commun. Math. Phys., 310 (2012), 765. doi: 10.1007/s00220-012-1415-1. Google Scholar

[2]

L. Arkeryd and A. Nouri, Bose Condensates in Interaction with Excitations - A Two-Component, Space Dependent Model Close to Equilibrium,, in preparation., (). Google Scholar

[3]

L. Arkeryd and A. Nouri, On the Milne problem and the hydrodynamic limit for a steady Boltzmann equation model,, J. Stat. Phys., 99 (2000), 993. doi: 10.1023/A:1018655815285. Google Scholar

[4]

A. V. Bobylev and N. Bernhoff, Discrete velocity models and dynamic systems,, in Lecture Notes on the discretization of the Boltzmann equation (eds. World Sci. Pub. I), 63 (2003), 203. doi: 10.1142/9789812796905_0008. Google Scholar

[5]

C. Bardos, R. E. Caflish and B. Nicolaenko, The Milne and Kramers problems for the Boltzmann equation of a hard sphere gas,, Commun. Pure Appl. Math., 39 (1986), 323. doi: 10.1002/cpa.3160390304. Google Scholar

[6]

C. Bardos, F. Golse and Y. Sone, Half-space problems for the Boltzmann equation: A survey,, J. Stat. Phys., 124 (2006), 275. doi: 10.1007/s10955-006-9077-z. Google Scholar

[7]

A. V. Bobylev and G. Toscani, Two-dimensional half space problems for the Broadwell discrete velocity model,, Contin. Mech. Thermodyn., 8 (1996), 257. doi: 10.1007/s001610050043. Google Scholar

[8]

C. Cercignani, Half-space problems in the kinetic theory of gases,, Trends in applications of pure mathematics to mechanics (Bad Honnef, 249 (1986), 35. doi: 10.1007/BFb0016381. Google Scholar

[9]

F. Coron, F. Golse and C. Sulem, A classification of well-posed kinetic layer problems,, Commun. Pure Appl. Math., 41 (1988), 409. doi: 10.1002/cpa.3160410403. Google Scholar

[10]

C. Cercignani, R. Marra and R. Esposito, The Milne problem with a force term,, Transport Theory and Statistical Physics, 27 (1998), 1. doi: 10.1080/00411459808205139. Google Scholar

[11]

F. Golse and F. Poupaud, Stationary solutions of the linearized Boltzmann equation in a half-space,, Math. Methods Appl. Sci., 11 (1989), 483. doi: 10.1002/mma.1670110406. Google Scholar

[12]

N. Maslova, The Kramers problems in the kinetic theory of gases,, USSR Comput. Math. Phys., 22 (1982), 208. Google Scholar

[13]

N. Maslova, Nonlinear Evolution Equations,, Kinetic approach. Series on Advances in Mathematics for Applied Sciences, (1993). Google Scholar

[14]

F. Poupaud, Diffusion approximation of the linear semiconductor equation: analysis of boundary layers,, Asymptotic Analysis, 4 (1991), 293. Google Scholar

[15]

Y. Sone, Kinetic Theory and Fluid Dynamics,, Birkhauser Boston, (2002). Google Scholar

[16]

Y. Sone, Molecular Gas Dynamics,, Theory, (2007). doi: 10.1007/978-0-8176-4573-1. Google Scholar

[17]

S. Ukai, T. Yang and S.-H. Yu, Nonlinear boundary layers of the Boltzmann equation: I. Existence,, Commun. Math. Phys., 236 (2003), 373. doi: 10.1007/s00220-003-0822-8. Google Scholar

[18]

S. Ukai, T. Yang and S.-H. Yu, Nonlinear stability of boundary layers of the Boltzmann equation; I. The case $\mathcalM_\infty <-1$,, Commun. Math. Phys., 244 (2004), 99. doi: 10.1007/s00220-003-0976-4. Google Scholar

show all references

References:
[1]

L. Arkeryd and A. Nouri, Bose condensates in interaction with excitations - a kinetic model,, Commun. Math. Phys., 310 (2012), 765. doi: 10.1007/s00220-012-1415-1. Google Scholar

[2]

L. Arkeryd and A. Nouri, Bose Condensates in Interaction with Excitations - A Two-Component, Space Dependent Model Close to Equilibrium,, in preparation., (). Google Scholar

[3]

L. Arkeryd and A. Nouri, On the Milne problem and the hydrodynamic limit for a steady Boltzmann equation model,, J. Stat. Phys., 99 (2000), 993. doi: 10.1023/A:1018655815285. Google Scholar

[4]

A. V. Bobylev and N. Bernhoff, Discrete velocity models and dynamic systems,, in Lecture Notes on the discretization of the Boltzmann equation (eds. World Sci. Pub. I), 63 (2003), 203. doi: 10.1142/9789812796905_0008. Google Scholar

[5]

C. Bardos, R. E. Caflish and B. Nicolaenko, The Milne and Kramers problems for the Boltzmann equation of a hard sphere gas,, Commun. Pure Appl. Math., 39 (1986), 323. doi: 10.1002/cpa.3160390304. Google Scholar

[6]

C. Bardos, F. Golse and Y. Sone, Half-space problems for the Boltzmann equation: A survey,, J. Stat. Phys., 124 (2006), 275. doi: 10.1007/s10955-006-9077-z. Google Scholar

[7]

A. V. Bobylev and G. Toscani, Two-dimensional half space problems for the Broadwell discrete velocity model,, Contin. Mech. Thermodyn., 8 (1996), 257. doi: 10.1007/s001610050043. Google Scholar

[8]

C. Cercignani, Half-space problems in the kinetic theory of gases,, Trends in applications of pure mathematics to mechanics (Bad Honnef, 249 (1986), 35. doi: 10.1007/BFb0016381. Google Scholar

[9]

F. Coron, F. Golse and C. Sulem, A classification of well-posed kinetic layer problems,, Commun. Pure Appl. Math., 41 (1988), 409. doi: 10.1002/cpa.3160410403. Google Scholar

[10]

C. Cercignani, R. Marra and R. Esposito, The Milne problem with a force term,, Transport Theory and Statistical Physics, 27 (1998), 1. doi: 10.1080/00411459808205139. Google Scholar

[11]

F. Golse and F. Poupaud, Stationary solutions of the linearized Boltzmann equation in a half-space,, Math. Methods Appl. Sci., 11 (1989), 483. doi: 10.1002/mma.1670110406. Google Scholar

[12]

N. Maslova, The Kramers problems in the kinetic theory of gases,, USSR Comput. Math. Phys., 22 (1982), 208. Google Scholar

[13]

N. Maslova, Nonlinear Evolution Equations,, Kinetic approach. Series on Advances in Mathematics for Applied Sciences, (1993). Google Scholar

[14]

F. Poupaud, Diffusion approximation of the linear semiconductor equation: analysis of boundary layers,, Asymptotic Analysis, 4 (1991), 293. Google Scholar

[15]

Y. Sone, Kinetic Theory and Fluid Dynamics,, Birkhauser Boston, (2002). Google Scholar

[16]

Y. Sone, Molecular Gas Dynamics,, Theory, (2007). doi: 10.1007/978-0-8176-4573-1. Google Scholar

[17]

S. Ukai, T. Yang and S.-H. Yu, Nonlinear boundary layers of the Boltzmann equation: I. Existence,, Commun. Math. Phys., 236 (2003), 373. doi: 10.1007/s00220-003-0822-8. Google Scholar

[18]

S. Ukai, T. Yang and S.-H. Yu, Nonlinear stability of boundary layers of the Boltzmann equation; I. The case $\mathcalM_\infty <-1$,, Commun. Math. Phys., 244 (2004), 99. doi: 10.1007/s00220-003-0976-4. Google Scholar

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