phy 7 11 classical mechanics and mathematical methods 10-10:50 am mwf olin 103

13
9/24/2012 PHY 711 Fall 2012 -- Lecture 12 1 PHY 711 Classical Mechanics and Mathematical Methods 10-10:50 AM MWF Olin 103 Plan for Lecture 13: Continue reading Chapter 6 Modern example of analysis using Lagrangian and Hamiltonian formalisms

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PHY 7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM MWF Olin 103 Plan for Lecture 13: Continue reading Chapter 6 Modern example of analysis using Lagrangian and Hamiltonian formalisms. Lagrangian picture. Hamiltonian picture. J. Chem. Physics 72 2384-2393 (1980). - PowerPoint PPT Presentation

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Page 1: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 19/24/2012

PHY 711 Classical Mechanics and Mathematical Methods

10-10:50 AM MWF Olin 103

Plan for Lecture 13:Continue reading Chapter 6

Modern example of analysis using Lagrangian and Hamiltonian formalisms

Page 2: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 29/24/2012

Page 3: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 113 A Fall 2012 -- Lecture 12 39/26/2012

Page 4: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 113 A Fall 2012 -- Lecture 12 49/26/2012

Page 5: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 113 A Fall 2012 -- Lecture 12 59/26/2012

Page 6: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 69/24/2012

Lagrangian picture

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Hamiltonian picture

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Page 7: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 79/24/2012

J. Chem. Physics 72 2384-2393 (1980)

Page 8: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 89/24/2012

“Molecular dynamics” is a subfield of computational physics focused on analyzing the motions of atoms in fluids and solids with the goal of relating the atomistic and macroscopic properties of materials. Ideally molecular dynamics calculations can numerically realize the statistical mechanics viewpoint.

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represent )( scoordinate dgeneralize that theImagine

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Page 9: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 99/24/2012

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From this Lagrangian, can find the 3N coupled 2nd order differential equations of motion and/or find the corresponding Hamiltonian, representing the system at constant energy, volume, and particle number N (N,V,E ensemble).

Page 10: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 109/24/2012

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Page 11: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 119/24/2012

H. C. Andersen wanted to adapt the formalism for modeling an (N,V,E) ensemble to one which could model a system at constant pressure (P).

V constant

P

P constant, V variable

Page 12: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 129/24/2012

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Page 13: PHY  7 11 Classical Mechanics and Mathematical Methods 10-10:50 AM  MWF  Olin 103

PHY 711 Fall 2012 -- Lecture 12 139/24/2012

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