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Path Integral Methods in Atomistic Modelling

Michele Ceriotti, Mariana Rossi, Thomas Markland, David Manolopoulos, and Venkat Kapil

The path integral formalism allows to introduce quantum mechanical effects on the equilibrium and (approximately) time-dependent behavior of atomic nuclei, which is relevant from cryogenic temperatures to room temperature and above, particularly for systems that contain light elements.

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The path integral formalism allows to introduce quantum mechanical effects on the equilibrium and (approximately) time-dependent behavior of atomic nuclei, which is relevant from cryogenic temperatures to room temperature and above, particularly for systems that contain light elements.

The course is conceived as a series of lectures on topics of increasing difficulty and specialization. For each topic, the complete course will provide a set of lecture notes, complete with pen-and-paper exercises, recorded lectures, and practical exercises based on jupyter notebooks and an advanced molecular dynamics code. The various chapters and content will appear in the coming months, as they become ready.

What's inside

Learning objectives

  • A re-cap of molecular dynamics and related sampling techniques
  • An introduction to the basic theory of path integral methods
  • Advanced estimators to compute momentum-dependent observables
  • Accelerated path integrals to reduce the computational cost, including ring-polymer contractions, high-order path integral hamiltonians and colored-noise methods
  • Approximate techniques for quantum dynamics based on the path integral formalism: ring-polymer md

Syllabus

Molecular Dynamics and Sampling - Michele Ceriotti, EPFL
The basics of path integrals - Mariana Rossi, MPG Hamburg
Advanced path integral methods - Thomas Markland, Stanford
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Ring Polymer molecular dynamics - David Manolopoulos, Oxford
Colored-noise methods - Michele Ceriotti, EPFL
Adiabatic ring-polymer rate theory - David Manolopoulos, Oxford
Non-adiabatic ring-polymer rate theory - David Manolopoulos, Oxford

Good to know

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Taught by Michele Ceriotti, Mariana Rossi, Thomas Markland, David Manolopoulos, and Venkat Kapil, who have significant experience and expertise in the domain of path integral molecular dynamics
Examines the application of path integral methods to study the equilibrium and time-dependent behavior of atomic nuclei
Develops skills in using path integral formalism to compute momentum-dependent observables and accelerate path integrals
Covers a range of methods in path integral theory, including ring-polymer molecular dynamics, colored-noise methods, and adiabatic and non-adiabatic ring-polymer rate theory
Provides a mix of lectures, exercises, and hands-on modules to facilitate learning
Suitable for researchers, academics, and advanced students interested in the study of nuclear dynamics using path integral methods

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Path Integral Methods in Atomistic Modelling with these activities:
Review quantum mechanics
Review core concepts of quantum mechanics to strengthen foundational understanding for this course.
Browse courses on Quantum Mechanics
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  • Re-visit textbooks or lecture notes on quantum mechanics.
  • Solve practice problems to reinforce your understanding.
Review molecular dynamics and related sampling techniques
This review will help students refresh their understanding of molecular dynamics and related sampling techniques, ensuring they are well-equipped to delve into the path integral formalism.
Browse courses on Molecular Dynamics
Show steps
  • Revisit the concepts of molecular dynamics, including force fields and integration methods.
  • Review free energy methods such as umbrella sampling, steered MD, and metadynamics.
  • Practice implementing molecular dynamics simulations using a software package.
Discuss path integral applications
Gain diverse perspectives and enhance understanding through discussions with peers.
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  • Initiate a study group or join an existing one.
  • Select specific path integral topics for discussion.
  • Prepare by reviewing materials and formulating questions.
Five other activities
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Show all eight activities
Path integral exercises
Deepen comprehension of path integral methods by completing exercises and drills.
Show steps
  • Work through the pen-and-paper exercises provided in the course notes.
  • Attempt the practice problems based on jupyter notebooks.
Explore advanced path integral methods
These tutorials will guide students through advanced path integral methods, enhancing their understanding of the theoretical foundations of the course.
Show steps
  • Follow video tutorials on topics such as ring-polymer contractions and high-order path integral Hamiltonians.
  • Work through interactive simulations that demonstrate the application of these methods.
Explain path integral concepts
Solidify understanding by explaining path integrals to someone else.
Show steps
  • Choose a specific path integral concept.
  • Prepare a clear and concise explanation.
  • Present your explanation to a friend or colleague.
Advanced path integral techniques
Expand knowledge by exploring advanced path integral techniques through dedicated tutorials.
Show steps
  • Identify reputable tutorials on advanced path integral techniques.
  • Follow the tutorials, taking notes and completing any exercises.
Implement path integral code
Apply knowledge by implementing path integral methods in code.
Show steps
  • Choose a specific path integral algorithm to implement.
  • Write code based on the chosen algorithm.
  • Test and debug the implementation.

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