{"id":182,"date":"2019-04-09T00:20:45","date_gmt":"2019-04-09T04:20:45","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/?post_type=chapter&#038;p=182"},"modified":"2019-04-12T18:54:38","modified_gmt":"2019-04-12T22:54:38","slug":"introduction-2","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/introduction-2\/","title":{"raw":"Introduction","rendered":"Introduction"},"content":{"raw":"<section id=\"main-content\" class=\"main-content\" data-is-baked=\"true\">\r\n<div>\r\n<div class=\"media-body\">\r\n<div id=\"content\">\r\n<div class=\"introduction\" data-cnxml-to-html-ver=\"1.3.3\" data-type=\"page\" id=\"018ccaf5-d217-467a-b03a-d2ea9d46f6ee\">\r\n<div class=\"os-chapter-outline\">\r\n<h3 class=\"os-title\">Chapter Outline<\/h3>\r\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-1-wave-functions\/\"><span class=\"os-number\">3.1\u00a0<\/span><span class=\"os-text\">Wave Functions<\/span><\/a><\/div>\r\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-2-the-heisenberg-uncertainty-principle\/\"><span class=\"os-number\">3.2\u00a0<\/span><span class=\"os-text\">The Heisenberg U<\/span><span class=\"os-text\">ncertainty Principle<\/span><\/a><\/div>\r\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-3-the-schr%d3%a7dinger-equation\/\"><span class=\"os-number\">3.3\u00a0<\/span><span class=\"os-text\">The Schr\u04e7dinger Equation<\/span><\/a><\/div>\r\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-4-the-quantum-particle-in-a-box\/\"><span class=\"os-number\">3.4\u00a0<\/span><span class=\"os-text\">The Quantum Particle in a Box<\/span><\/a><\/div>\r\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-5-the-quantum-harmonic-oscillator\/\"><span class=\"os-number\">3.5\u00a0<\/span><span class=\"os-text\">The Quantum Harmonic Oscillator<\/span><\/a><\/div>\r\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-6-the-quantum-tunneling-of-particles-through-potential-barriers\/\"><span class=\"os-number\">3.6\u00a0<\/span><span class=\"os-text\">The Quantum Tunneling of Particles through Potential Barriers<\/span><\/a><\/div>\r\n<div><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/chapter-3-review\/\">Chapter 3 Review<\/a><\/div>\r\n<div><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/chapter-3-answer-key\/\">Chapter 3 Answer Key<\/a><\/div>\r\n<\/div>\r\n<div class=\"os-figure\">\r\n<figure id=\"CNX_UPhysics_40_00_opening\" class=\"splash\">\r\n\r\n[caption id=\"\" align=\"alignnone\" width=\"975\"]<img alt=\"A photograph of a D wave qubit processor\" data-media-type=\"image\/jpeg\" id=\"88623\" src=\"https:\/\/cnx.org\/resources\/0bee57e8b04bc35840440fac5ef65177a23bec02\" width=\"975\" height=\"450\" \/> Figure 3.1A D-wave qubit processor: The brain of a quantum computer that encodes information in quantum bits to perform complex calculations. (credit: modification of work by D-Wave Systems, Inc.)[\/caption]<\/figure>\r\n<\/div>\r\n<p id=\"fs-id1170902370000\">Quantum mechanics is a powerful framework for understanding the motions and interactions of particles at small scales, such as atoms and molecules. The ideas behind quantum mechanics often appear quite strange. In many ways, our everyday experience with the macroscopic physical world does not prepare us for the microscopic world of quantum mechanics. The purpose of this chapter is to introduce you to this exciting world.<\/p>\r\n<p id=\"fs-id1170902361439\">Pictured above is a quantum-computer processor. This device is the \u201cbrain\u201d of a quantum computer that operates at near-absolute zero temperatures. Unlike a digital computer, which encodes information in binary digits (definite states of either zero or one), a quantum computer encodes information in quantum bits or qubits (mixed states of zero\u00a0<em data-effect=\"italics\">and\u00a0<\/em>one). Quantum computers are discussed in the first section of this chapter.<\/p>\r\n\r\n<\/div>\r\n&nbsp;\r\n<div class=\"textbox\"><em>Download for free at http:\/\/cnx.org\/contents\/af275420-6050-4707-995c-57b9cc13c358@11.1<\/em><\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/section>","rendered":"<section id=\"main-content\" class=\"main-content\" data-is-baked=\"true\">\n<div>\n<div class=\"media-body\">\n<div id=\"content\">\n<div class=\"introduction\" data-cnxml-to-html-ver=\"1.3.3\" data-type=\"page\" id=\"018ccaf5-d217-467a-b03a-d2ea9d46f6ee\">\n<div class=\"os-chapter-outline\">\n<h3 class=\"os-title\">Chapter Outline<\/h3>\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-1-wave-functions\/\"><span class=\"os-number\">3.1\u00a0<\/span><span class=\"os-text\">Wave Functions<\/span><\/a><\/div>\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-2-the-heisenberg-uncertainty-principle\/\"><span class=\"os-number\">3.2\u00a0<\/span><span class=\"os-text\">The Heisenberg U<\/span><span class=\"os-text\">ncertainty Principle<\/span><\/a><\/div>\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-3-the-schr%d3%a7dinger-equation\/\"><span class=\"os-number\">3.3\u00a0<\/span><span class=\"os-text\">The Schr\u04e7dinger Equation<\/span><\/a><\/div>\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-4-the-quantum-particle-in-a-box\/\"><span class=\"os-number\">3.4\u00a0<\/span><span class=\"os-text\">The Quantum Particle in a Box<\/span><\/a><\/div>\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-5-the-quantum-harmonic-oscillator\/\"><span class=\"os-number\">3.5\u00a0<\/span><span class=\"os-text\">The Quantum Harmonic Oscillator<\/span><\/a><\/div>\n<div class=\"os-chapter-objective\"><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/3-6-the-quantum-tunneling-of-particles-through-potential-barriers\/\"><span class=\"os-number\">3.6\u00a0<\/span><span class=\"os-text\">The Quantum Tunneling of Particles through Potential Barriers<\/span><\/a><\/div>\n<div><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/chapter-3-review\/\">Chapter 3 Review<\/a><\/div>\n<div><a href=\"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/chapter-3-answer-key\/\">Chapter 3 Answer Key<\/a><\/div>\n<\/div>\n<div class=\"os-figure\">\n<figure id=\"CNX_UPhysics_40_00_opening\" class=\"splash\">\n<figure style=\"width: 975px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" alt=\"A photograph of a D wave qubit processor\" data-media-type=\"image\/jpeg\" id=\"88623\" src=\"https:\/\/cnx.org\/resources\/0bee57e8b04bc35840440fac5ef65177a23bec02\" width=\"975\" height=\"450\" \/><figcaption class=\"wp-caption-text\">Figure 3.1A D-wave qubit processor: The brain of a quantum computer that encodes information in quantum bits to perform complex calculations. (credit: modification of work by D-Wave Systems, Inc.)<\/figcaption><\/figure>\n<\/figure>\n<\/div>\n<p id=\"fs-id1170902370000\">Quantum mechanics is a powerful framework for understanding the motions and interactions of particles at small scales, such as atoms and molecules. The ideas behind quantum mechanics often appear quite strange. In many ways, our everyday experience with the macroscopic physical world does not prepare us for the microscopic world of quantum mechanics. The purpose of this chapter is to introduce you to this exciting world.<\/p>\n<p id=\"fs-id1170902361439\">Pictured above is a quantum-computer processor. This device is the \u201cbrain\u201d of a quantum computer that operates at near-absolute zero temperatures. Unlike a digital computer, which encodes information in binary digits (definite states of either zero or one), a quantum computer encodes information in quantum bits or qubits (mixed states of zero\u00a0<em data-effect=\"italics\">and\u00a0<\/em>one). Quantum computers are discussed in the first section of this chapter.<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"textbox\"><em>Download for free at http:\/\/cnx.org\/contents\/af275420-6050-4707-995c-57b9cc13c358@11.1<\/em><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"author":615,"menu_order":1,"template":"","meta":{"pb_show_title":"on","pb_short_title":"3. 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