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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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- no detail
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