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The Physics of Information Technology : Cambridge Information and the Natural Sciences - Neil Gershenfeld

The Physics of Information Technology

Cambridge Information and the Natural Sciences

Hardcover Published: October 2000
ISBN: 9780521580441
Number Of Pages: 388

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The Physics of Information Technology explores the familiar devices that we use to collect, transform, transmit, and interact with electronic information. Many such devices operate surprisingly close to very many fundamental physical limits. Understanding how such devices work, and how they can (and cannot) be improved, requires deep insight into the character of physical law as well as engineering practice. The book starts with an introduction to units, forces, and the probabilistic foundations of noise and signaling, then progresses through the electromagnetics of wired and wireless communications, and the quantum mechanics of electronic, optical, and magnetic materials, to discussions of mechanisms for computation, storage, sensing, and display. This self-contained volume will help both physical scientists and computer scientists see beyond the conventional division between hardware and software to understand the implications of physical theory for information manipulation.

Industry Reviews

'Gershenfeld's book will be valuable for physical scientists looking for an enjoyable introduction to the information sciences.' Science 'The book is attractive for its presentation bringing together in a skillful way fundamentals of physics and technological devices ... this book is very recommended for teaching the basics of electrical engineering and the simultaneous breath of coverage and conciseness is quite amazing.' Zentralblatt fur Mathematik

Prefacep. xiii
Introductionp. 1
Interactions, Units, and Magnitudesp. 3
Unitsp. 3
Particles and Forcesp. 7
Orders of Magnitudep. 10
Selected Referencesp. 12
Problemsp. 13
Noise in Physical Systemsp. 14
Random Variablesp. 14
Expectation Valuesp. 14
Spectral Theoremsp. 15
Probability Distributionsp. 18
Binomialp. 18
Poissonp. 18
Gaussianp. 19
Central Limit Theoremp. 21
Noise Mechanismsp. 22
Shot Noisep. 22
Johnson Noisep. 23
l/f Noise and Switching Noisep. 24
Amplifier Noisep. 25
Thermodynamics and Noisep. 27
Thermodynamics and Statistical Mechanicsp. 27
Equipartition Theoremp. 30
Fluctuation--Dissipation Theoremp. 31
Selected Referencesp. 34
Problemsp. 35
Information in Physical Systemsp. 36
Informationp. 36
Channel Capacityp. 40
The Gaussian Channelp. 42
Fisher Informationp. 45
Information and Thermodynamicsp. 48
Selected Referencesp. 49
Problemsp. 49
Electromagnetic Fields and Wavesp. 51
Vector Calculusp. 51
Vectorsp. 51
Differential Operatorsp. 53
Integral Relationshipsp. 55
Staticsp. 56
Electrostaticsp. 56
Magnetostaticsp. 60
Multipolesp. 63
Dynamicsp. 66
Maxwell's Equationsp. 66
Boundary Conditionsp. 68
Electromagnetic Unitsp. 70
Radiation and Energyp. 71
Wavesp. 71
Electromagnetic Energyp. 72
Selected Referencesp. 74
Problemsp. 74
Circuits, Transmission Lines, and Waveguidesp. 76
Circuitsp. 76
Current and Voltagep. 76
Kirchhoff's Lawsp. 77
Resistancep. 77
Powerp. 79
Capacitancep. 79
Inductancep. 80
Wires and Transmission Linesp. 81
Skin Depthp. 81
Transmission Linesp. 83
Wave Solutionsp. 85
Reflections and Terminationsp. 87
Waveguidesp. 90
Governing Equationsp. 90
Rectangular Waveguidesp. 92
Circular Waveguidesp. 93
Dielectric Waveguides and Fiber Opticsp. 93
Selected Referencesp. 95
Problemsp. 96
Antennasp. 98
Time-Dependent Potentialsp. 98
Dipole Radiationp. 102
Infinitesimal Lengthp. 102
Finite Lengthp. 104
Duality and Reciprocityp. 106
Antenna Typesp. 109
Selected Referencesp. 111
Problemsp. 111
Opticsp. 112
Reflection and Refractionp. 112
Geometrical Opticsp. 117
Ray Matricesp. 119
Optical Transformsp. 120
Beyond Geometrical Opticsp. 122
Selected Referencesp. 126
Problemsp. 126
Lensless Imaging and Inverse Problemsp. 128
Matched Filters and Synthetic Lensesp. 128
Coherent Imagingp. 131
Computed Tomographyp. 134
Magnetic Resonance Imagingp. 135
Inverse Problemsp. 138
Selected Referencesp. 139
Problemsp. 139
Semiconductor Materials and Devicesp. 141
Quantum Statistical Mechanicsp. 141
Electronic Structurep. 143
Junctions, Diodes, and Transistorsp. 151
Logicp. 156
Limitsp. 161
Selected Referencesp. 163
Problemsp. 163
Generating, Detecting, and Modulating Lightp. 165
Generationp. 165
Incandescencep. 165
Luminescence: LEDs, Lasers, and Flat Panelsp. 167
Detectionp. 172
Modulationp. 177
Polarizationp. 177
Liquid Crystalsp. 179
Smoke and Mirrorsp. 183
Selected Referencesp. 186
Problemsp. 186
Magnetic Storagep. 187
Magnetismp. 187
Diamagnetismp. 189
Paramagnetismp. 190
Ferro-, Antiferro-, and Ferri-magnetismp. 192
Magnetic Recordingp. 197
Magnetic Mediap. 197
Magnetic Recordingp. 198
Recording Systemsp. 200
Selected Referencesp. 201
Problemsp. 201
Measurement and Codingp. 203
Instrumentationp. 203
Amplifiersp. 203
Grounding, Shielding, and Leadsp. 207
Bridgesp. 209
Modulation and Detectionp. 211
Synchronous Detectionp. 211
Phase Detection and Encodingp. 213
Spread Spectrump. 216
Digitizationp. 220
Codingp. 222
Compressionp. 222
Error Correctionp. 225
Channel Codingp. 227
Cryptographyp. 228
Selected Referencesp. 229
Problemsp. 229
Transducersp. 231
Many-Body Effectsp. 231
Superconductivityp. 232
SQUIDsp. 235
Non-Equilibrium Thermodynamicsp. 236
Thermoelectricityp. 239
Piezoelectricityp. 242
Relativityp. 243
Clocksp. 243
Timep. 246
Positionp. 249
Selected Referencesp. 251
Problemsp. 251
Quantum Computing and Communicationsp. 252
Quantum Mechanicsp. 253
States and Operatorsp. 253
Angular Momentump. 258
Density Matricesp. 263
Informationp. 266
Communicationsp. 269
Cryptographyp. 269
Circuitsp. 270
Teleportationp. 271
Error Correctionp. 273
Computationp. 275
Searchingp. 276
Transforms and Factoringp. 278
Simulationp. 281
Experimental Implementationp. 282
Selected Referencesp. 284
Problemsp. 285
Problem Solutionsp. 286
Introductionp. 286
Interactions, Units, and Magnitudesp. 286
Noise in Physical Systemsp. 291
Information in Physical Systemsp. 296
Electromagnetic Fields and Wavesp. 300
Circuits, Transmission Lines, and Wave Guidesp. 305
Antennasp. 309
Opticsp. 311
Lensless Imaging and Inverse Problemsp. 317
Semiconductor Materials and Devicesp. 322
Generating, Modulating, and Detecting Lightp. 327
Magnetic Storagep. 330
Measurement and Codingp. 334
Transducersp. 338
Quantum Computing and Communicationp. 342
Bibliographyp. 347
Indexp. 362
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780521580441
ISBN-10: 0521580447
Series: Cambridge Information and the Natural Sciences
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 388
Published: October 2000
Publisher: CAMBRIDGE UNIV PR
Country of Publication: GB
Dimensions (cm): 25.48 x 18.06  x 2.87
Weight (kg): 0.86

Earn 525 Qantas Points
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