Can a molecular dynamics simulation enter a limit cycle?

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SUMMARY

Molecular Dynamics (MD) simulations using Classical Newtonian mechanics operate in a 6N dimensional non-linear system, where N represents the number of particles. The non-linearity arises from the force fields, which can lead to chaotic behavior. There is a possibility for the system to enter a periodic attractor, also known as a limit cycle, particularly when the simulation method is not symplectic, meaning it is "almost energy conserving." This concept is further explored in a referenced Google Books link that illustrates limit cycles in non-symplectic methods.

PREREQUISITES
  • Understanding of Molecular Dynamics simulations
  • Familiarity with Classical Newtonian mechanics
  • Knowledge of non-linear systems and chaos theory
  • Concept of symplectic vs. non-symplectic methods in numerical simulations
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  • Research the implications of non-symplectic methods in Molecular Dynamics simulations
  • Study examples of limit cycles in dynamical systems
  • Learn about chaos theory and its applications in physics
  • Explore advanced topics in numerical methods for simulating classical mechanics
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Researchers and students in physics, particularly those focused on Molecular Dynamics, chaos theory, and numerical simulation methods. This discussion is also beneficial for anyone interested in the behavior of non-linear systems.

dexterdev
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In my rough understanding Molecular Dynamics using Classical Newtonian mechanics is a 6N dimensional non linear system. 6N dimension because you have 3 position vectors and 3 momentum vectors for each N particles. Nonlinearity because of the terms in force fields. In principle this system can exhibit chaos. Also is there any small probability such that the system enters a periodic attractor ?
 
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Great question, I'll have to think about it.

Upon searching some stuff to refresh my mind I stumbled on a cross-post at stackexchange
This does give me some more info.

I found this link to google books which at least for me shows an example of a limit cycle in the case that your method isn't symplectic ("almost energy conserving" if you like to look at it that way).
 
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JorisL said:
Upon searching some stuff to refresh my mind I stumbled on a cross-post at stackexchange

That is my question at physics.SE.
 

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