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Internal Gravity Waves

Gary A. Glatzmaier

in Introduction to Modeling Convection in Planets and Stars: Magnetic Field, Density Stratification, Rotation

Published in print:
2013
Published Online:
October 2017
ISBN:
9780691141725
eISBN:
9781400848904
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691141725.003.0006
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter focuses on internal gravity waves in a stable thermal stratification. When the amplitude of the fluid velocity is small relative to the amplitude of the phase velocity, a linear ... More


Magnetic Field

Gary A. Glatzmaier

in Introduction to Modeling Convection in Planets and Stars: Magnetic Field, Density Stratification, Rotation

Published in print:
2013
Published Online:
October 2017
ISBN:
9780691141725
eISBN:
9781400848904
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691141725.003.0011
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter focuses on magnetoconvection, which refers to thermal convection of an electrically conducting fluid within a background magnetic field maintained by some external mechanism. It first ... More


Doodling toward a New “Theory”

in Drawing Theories Apart: The Dispersion of Feynman Diagrams in Postwar Physics

Published in print:
2005
Published Online:
March 2013
ISBN:
9780226422664
eISBN:
9780226422657
Item type:
chapter
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226422657.003.0008
Subject:
History, History of Science, Technology, and Medicine

In the spring of 1964, Jerry Finkelstein, a graduate student in Berkeley's physics department, summarized material culled from earlier course notes—courses that had covered several topics in ... More


Hydrodynamic stability

Stefano Atzeni and JÜrgen Meyer-Ter-Vehn

in The Physics of Inertial Fusion: BeamPlasma Interaction, Hydrodynamics, Hot Dense Matter

Published in print:
2004
Published Online:
January 2008
ISBN:
9780198562641
eISBN:
9780191714030
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198562641.003.0008
Subject:
Physics, Nuclear and Plasma Physics

This chapter is devoted to hydrodynamic instabilities. Internal confinement fusion (ICF) capsule implosions are inherently unstable. In particular, the Rayleigh-Taylor instability (RTI) developing at ... More


Custodian of quantum field theory

JAGDISH MEHRA and KIMBALL A. MILTON

in Climbing the Mountain: The Scientific Biography of Julian Schwinger

Published in print:
2003
Published Online:
February 2010
ISBN:
9780198527459
eISBN:
9780191709593
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198527459.003.0011
Subject:
Physics, History of Physics

Julian Schwinger had now scaled the peak of quantum electrodynamics (QED), not once, but three times, the last time by inventing a new approach to any quantum-mechanical system, the quantum dynamical ... More


Introduction to the Mathematics of Rays

John A. Adam

in Rays, Waves, and Scattering: Topics in Classical Mathematical Physics

Published in print:
2017
Published Online:
May 2018
ISBN:
9780691148373
eISBN:
9781400885404
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691148373.003.0003
Subject:
Mathematics, Applied Mathematics

This chapter provides an overview of the mathematics of rays. It begins with a discussion of the theory of geometrical optics and how it can be formulated by means of the ray equations or the ... More


Functions of a complex variable

Chun Wa Wong

in Introduction to Mathematical Physics: Methods & Concepts

Published in print:
2013
Published Online:
May 2013
ISBN:
9780199641390
eISBN:
9780191747786
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199641390.003.0008
Subject:
Physics, Theoretical, Computational, and Statistical Physics

Functions of a complex variable are shown to be more complete and rigid than functions of a real variable. Analytic functions with well defined derivatives satisfy two Cauch–Riemann conditions. ... More


Phonons

Ian R. Kenyon

in Quantum 20/20: Fundamentals, Entanglement, Gauge Fields, Condensates and Topology

Published in print:
2019
Published Online:
November 2019
ISBN:
9780198808350
eISBN:
9780191846052
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198808350.003.0004
Subject:
Physics, Theoretical, Computational, and Statistical Physics, Particle Physics / Astrophysics / Cosmology

Phonons are introduced as an example of quasi-particles that can only exist in matter. Debye’s quantum model for heat capacity of solids and comparison with experimentin different temperature ranges ... More


Surface Gravity Waves

John A. Adam

in Rays, Waves, and Scattering: Topics in Classical Mathematical Physics

Published in print:
2017
Published Online:
May 2018
ISBN:
9780691148373
eISBN:
9781400885404
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691148373.003.0011
Subject:
Mathematics, Applied Mathematics

This chapter deals with the underlying mathematics of surface gravity waves, defined as gravity waves observed on an air–sea interface of the ocean. Surface gravity waves, or surface waves, differ ... More


Magnons

Olle Eriksson, Anders Bergman, Lars Bergqvist, and Johan Hellsvik

in Atomistic Spin Dynamics: Foundations and Applications

Published in print:
2017
Published Online:
May 2017
ISBN:
9780198788669
eISBN:
9780191830747
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198788669.003.0009
Subject:
Physics, Atomic, Laser, and Optical Physics

In this chapter we give several examples of how the multiscale approach for atomistic spin-dynamics, as described in Part I and Part II of this book, performs for describing magnon excitations of ... More


Analyticity Properties of Feynman Diagrams

Laurent Baulieu, John Iliopoulos, and Roland Sénéor

in From Classical to Quantum Fields

Published in print:
2017
Published Online:
May 2017
ISBN:
9780198788393
eISBN:
9780191830310
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198788393.003.0020
Subject:
Physics, Particle Physics / Astrophysics / Cosmology, Theoretical, Computational, and Statistical Physics

General discussion of the analyticity properties of Feynman diagrams. Cutting rules and the Cutkosky unitarity relations. Unstable particles and second sheet singularities. Dispersion relations and ... More


Polaritons

Monique Combescot and Shiue-Yuan Shiau

in Excitons and Cooper Pairs: Two Composite Bosons in Many-Body Physics

Published in print:
2015
Published Online:
March 2016
ISBN:
9780198753735
eISBN:
9780191815287
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198753735.003.0015
Subject:
Physics, Condensed Matter Physics / Materials

Chapter 15 deals with exciton-polaritons. Starting from the polariton creation operator, a many-body formalism analogous to the one for excitons is constructed. In particular, the chapter identifies ... More


Electrons in solids

Ian R. Kenyon

in Quantum 20/20: Fundamentals, Entanglement, Gauge Fields, Condensates and Topology

Published in print:
2019
Published Online:
November 2019
ISBN:
9780198808350
eISBN:
9780191846052
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198808350.003.0005
Subject:
Physics, Theoretical, Computational, and Statistical Physics, Particle Physics / Astrophysics / Cosmology

Electron energy bands in solids are introduced. Free electron theory for metals is presented: the Fermi gas, Fermi energy and temperature. Electrical and thermal conductivity are interpreted, ... More


Perfect Crystal Neutron Optics

Helmut Rauch and Samuel A. Werner

in Neutron Interferometry 2nd Edn: Lessons in Experimental Quantum Mechanics, Wave-Particle Duality, and Entanglement

Published in print:
2015
Published Online:
March 2015
ISBN:
9780198712510
eISBN:
9780191780813
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198712510.003.0011
Subject:
Physics, Atomic, Laser, and Optical Physics

The perfect crystal, LLL-geometry, neutron interferometer is geometrically analogous to the classical Mach–Zehnder interferometer. Its operation depends in exquisite detail on the dynamical theory of ... More


Guided Waves in Plates and Rods

Dale Chimenti, Stanislav Rokhlin, and Peter Nagy

in Physical Ultrasonics of Composites

Published in print:
2011
Published Online:
November 2020
ISBN:
9780195079609
eISBN:
9780197560389
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195079609.003.0009
Subject:
Chemistry, Industrial Chemistry

In this chapter we consider elastic wave modes which propagate in composites with finite boundaries. There are those waves that exist between the two plane parallel boundaries of a homogeneous ... More


Surface Wind Waves

Eric B. Kraus and Joost A. Businger

in Atmosphere-Ocean Interaction

Published in print:
1995
Published Online:
November 2020
ISBN:
9780195066180
eISBN:
9780197560204
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195066180.003.0008
Subject:
Earth Sciences and Geography, Oceanography and Hydrology

Rhythmic and monotonously repetitive, but quite unpredictable in its details, the structure of the sea surface is an epitome of the natural world. Surface waves have been studied actively by ... More


Some applications of Maxwell’s equations in matter

J. Pierrus

in Solved Problems in Classical Electromagnetism: Analytical and Numerical Solutions with Comments

Published in print:
2018
Published Online:
October 2018
ISBN:
9780198821915
eISBN:
9780191861055
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198821915.003.0010
Subject:
Physics, Condensed Matter Physics / Materials

This chapter comprises questions of a miscellaneous nature. They mostly have little in common except that all processes are time-dependent and occur within matter. The first few questions introduce ... More


Wave Theory

B. D. Guenther

in Modern Optics

Published in print:
2015
Published Online:
January 2016
ISBN:
9780198738770
eISBN:
9780191801983
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198738770.003.0001
Subject:
Physics, Atomic, Laser, and Optical Physics

A traveling wave on a string is used to find the functional form of a one-dimensional wave. Following a discussion of the energy associated with the traveling wave, the one-dimensional model ... More


Introduction To Solids And Their Interfaces

Abraham Nitzan

in Chemical Dynamics in Condensed Phases: Relaxation, Transfer and Reactions in Condensed Molecular Systems

Published in print:
2006
Published Online:
November 2020
ISBN:
9780198529798
eISBN:
9780191916649
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198529798.003.0009
Subject:
Chemistry, Physical Chemistry

The study of dynamics of molecular processes in condensed phases necessarily involves properties of the condensed environment that surrounds the system under consideration. This chapter provides ... More


Ideal Fluid Flows

S. G. Rajeev

in Fluid Mechanics: A Geometrical Point of View

Published in print:
2018
Published Online:
October 2018
ISBN:
9780198805021
eISBN:
9780191843136
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198805021.003.0004
Subject:
Physics, Soft Matter / Biological Physics, Condensed Matter Physics / Materials

Some solutions of Euler’s equations are found here. The simplest are the steady flows: water flowing out of a tank at a constant rate, the Venturi and Pitot tubes. Another is the static solution of a ... More


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