# Quantum mechanics. Theoretical minimum

In our publishing house published 3 book Leonard Susskind:
Prototype: the Quantum Mechanics: the Minimum of The Theoretical

Classical mechanics is intuitive: it is used daily and repeatedly by people for survival. But until the twentieth century, no one had ever used quantum mechanics. She describes things so small that they completely fall out of the realm of perception of the human senses. The only way to understand this theory, to enjoy its beauty, is to block our intuition with abstract mathematics. Leonard Sasskind - a famous American scientist - invites you to go on an exciting journey to the country of quantum mechanics. On the way, you will need basic knowledge from the school physics course, as well as the basics of mathematical analysis and linear algebra. It is also necessary to know something about the issues that were considered in Susskind's first book of “theoretical minimum” - “Everything you need to know about modern physics”. But fearless if this knowledge is somewhat forgotten. A lot of the author will remind and explain along the way. Quantum mechanics is an unusual theory: according to its postulates, for example, we can know everything about the system and nothing about its individual parts. Einstein and Niels Bohr argued a lot about this and other contradictions. If you are not afraid of difficulties, have an inquiring mind, are technically competent, sincerely and deeply interested in physics, then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. we can know everything about the system and nothing about its individual parts. Einstein and Niels Bohr argued a lot about this and other contradictions. If you are not afraid of difficulties, have an inquiring mind, are technically competent, sincerely and deeply interested in physics, then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. we can know everything about the system and nothing about its individual parts. Einstein and Niels Bohr argued a lot about this and other contradictions. If you are not afraid of difficulties, have an inquiring mind, are technically competent, sincerely and deeply interested in physics, then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises.

Usually we first study classical mechanics, and then approach quantum. However, quantum physics is much more fundamental than classical. As far as we know, quantum physics gives an accurate description of all physical systems, but some objects are massive enough to use classical instead of quantum mechanics. Approximation is all that classical mechanics is. From a logical point of view, we would first have to study quantum mechanics, but very few physics teachers recommend doing this. Even this course of lectures - “Theoretical minimum” - begins with classical mechanics. Nevertheless, classical mechanics will play almost no role in this course of lectures on quantum theory, with the exception of the very end of the course. when all the basic principles of quantum mechanics are already explained. I believe that this is a truly correct way of studying - not only logically, but also pedagogically. On this path, we do not fall into the trap where it seems that quantum mechanics is, in fact, the same classical mechanics with the addition of a couple of new tricks. By the way, technically quantum mechanics is much simpler than classical.

The simplest classical system is the basic logical element of modern computer science: a system with two states. Sometimes we call it a

He graduated from New York City College with a master's degree in physics in 1962, and received his Ph.D. in 1965 from Cornell University. Since 1979, Susskind is a professor of physics at Stanford University. In 1998, he was awarded the Sakurai Prize for innovative achievements in the field of hadron string models, lattice gauge theories, quantum chromodynamics, and dynamic symmetry breaking. Since 1999, professor at the Korea Advanced Research Institute.

Susskind made a significant contribution to the development of modern physics. Among his scientific achievements:

Classical mechanics is intuitive: it is used daily and repeatedly by people for survival. But until the twentieth century, no one had ever used quantum mechanics. She describes things so small that they completely fall out of the realm of perception of the human senses. The only way to understand this theory, to enjoy its beauty, is to block our intuition with abstract mathematics. Leonard Sasskind - a famous American scientist - invites you to go on an exciting journey to the country of quantum mechanics. On the way, you will need basic knowledge from the school physics course, as well as the basics of mathematical analysis and linear algebra. It is also necessary to know something about the issues that were considered in Susskind's first book of “theoretical minimum” - “Everything you need to know about modern physics”. But fearless if this knowledge is somewhat forgotten. A lot of the author will remind and explain along the way. Quantum mechanics is an unusual theory: according to its postulates, for example, we can know everything about the system and nothing about its individual parts. Einstein and Niels Bohr argued a lot about this and other contradictions. If you are not afraid of difficulties, have an inquiring mind, are technically competent, sincerely and deeply interested in physics, then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. we can know everything about the system and nothing about its individual parts. Einstein and Niels Bohr argued a lot about this and other contradictions. If you are not afraid of difficulties, have an inquiring mind, are technically competent, sincerely and deeply interested in physics, then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. we can know everything about the system and nothing about its individual parts. Einstein and Niels Bohr argued a lot about this and other contradictions. If you are not afraid of difficulties, have an inquiring mind, are technically competent, sincerely and deeply interested in physics, then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises. then this course of lectures by Leonard Sasskind will appeal to you. The book focuses on the logical principles of quantum theory and aims not to smooth out the paradox of quantum logic, but to pull it into the light of day and try to deal with the difficult issues that it raises.

##### Introduction:

Usually we first study classical mechanics, and then approach quantum. However, quantum physics is much more fundamental than classical. As far as we know, quantum physics gives an accurate description of all physical systems, but some objects are massive enough to use classical instead of quantum mechanics. Approximation is all that classical mechanics is. From a logical point of view, we would first have to study quantum mechanics, but very few physics teachers recommend doing this. Even this course of lectures - “Theoretical minimum” - begins with classical mechanics. Nevertheless, classical mechanics will play almost no role in this course of lectures on quantum theory, with the exception of the very end of the course. when all the basic principles of quantum mechanics are already explained. I believe that this is a truly correct way of studying - not only logically, but also pedagogically. On this path, we do not fall into the trap where it seems that quantum mechanics is, in fact, the same classical mechanics with the addition of a couple of new tricks. By the way, technically quantum mechanics is much simpler than classical.

The simplest classical system is the basic logical element of modern computer science: a system with two states. Sometimes we call it a

*beat*. It can be something that can only be in two states: a coin that can lie on an eagle or tails, a toggle switch that can be turned on or off, a tiny magnet that can be oriented north or south. As you might expect, especially if acquainted with lectures*Volume I of*, the theory of classical systems with two states is very simple, in fact, even boring. In this volume, we will start with a quantum version of a two-state system called*qubit*which is much more interesting. To understand it, we need a completely new way of thinking - a new foundation of logic.##### About the author of the book

**Leonard Susskind**is an American theoretical physicist, one of the creators of string theory, who is currently teaching at Stanford University.He graduated from New York City College with a master's degree in physics in 1962, and received his Ph.D. in 1965 from Cornell University. Since 1979, Susskind is a professor of physics at Stanford University. In 1998, he was awarded the Sakurai Prize for innovative achievements in the field of hadron string models, lattice gauge theories, quantum chromodynamics, and dynamic symmetry breaking. Since 1999, professor at the Korea Advanced Research Institute.

Susskind made a significant contribution to the development of modern physics. Among his scientific achievements:

- introduction to hadron physics of a one-dimensional fundamental object - a string;
- contribution to quark confinement theory;
- development of a gauge theory in terms of a Hamiltonian lattice;
- contribution to the string description of the entropy of a black hole;
- development of a matrix description of M-theory;
- contribution to the development of the holographic principle.

##### About the translator and scientific editor of the Russian edition

**Alexander Sergeev**, a well-known Russian scientific journalist and popularizer of science, worked on the Russian translation of*Quantum Mechanics: The Theoretical Minimum*. For many years Alexander worked as a scientific editor and columnist in such publications as Vedomosti, Around the World, Radio Liberty, Science in Focus, and has authored a large number of publications and has translated several popular science books. At the moment, Alexander is conducting a series of World of Science programs , broadcast on the Mir television channel. The book on the publisher’s website Contents Excerpt For Habra 25% discount on the book and the entire series of "New Science" for the**Susskind**coupon .