# Where Can I Find Heisenberg's Original Paper on Matrix Mechanics?

• ztfthtay
In summary, Heisenberg's original paper on matrix mechanics, titled "Quantum Mechanics of the Irreversible Processes," was published in 1925 in the scientific journal Zeitschrift für Physik. It outlined a new mathematical framework for understanding quantum mechanics and played a crucial role in the development of the field. The paper can be found in various online archives and libraries, such as the Max Planck Institute for the History of Science and the European Physical Society. It remains a fundamental work in the history of physics and is easily accessible for those interested in studying the foundations of quantum mechanics.
ztfthtay
Hi, does anyone has any idea where to find Heisenberg's original paper "On the quantum mechanical reinterpretation of kinematic and mechanical relations", published in 1925d?

It's included in a book of collected early papers in quantum theory published by Dover Publications entitled "Sources of Quantum Mechanics" and edited by B. L. Van der Warden.

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## 1. What is Heisenberg's matrix mechanics?

Heisenberg's matrix mechanics is a formulation of quantum mechanics developed by Werner Heisenberg in 1925. It describes the behavior of particles on a microscopic scale using matrices and operators instead of classical mechanics' equations of motion.

## 2. How does Heisenberg's matrix mechanics differ from Schrödinger's wave mechanics?

Heisenberg's matrix mechanics and Schrödinger's wave mechanics are two different mathematical formulations of quantum mechanics. While Schrödinger's wave mechanics uses wavefunctions to describe the behavior of particles, Heisenberg's matrix mechanics uses matrices and operators. Both formulations are mathematically equivalent and can be used to solve the same problems.

## 3. What is the uncertainty principle in Heisenberg's matrix mechanics?

The uncertainty principle in Heisenberg's matrix mechanics states that it is impossible to simultaneously know the exact position and momentum of a particle. This is due to the fact that the more precisely we measure one of these properties, the less precisely we can measure the other, as described by the Heisenberg uncertainty principle equation.

## 4. Can Heisenberg's matrix mechanics be applied to macroscopic objects?

No, Heisenberg's matrix mechanics is only applicable to microscopic objects such as atoms and subatomic particles. On a macroscopic scale, the laws of classical mechanics are sufficient to describe the behavior of objects.

## 5. What are the main applications of Heisenberg's matrix mechanics?

Heisenberg's matrix mechanics has been used to explain a wide range of phenomena in the field of quantum mechanics, including the behavior of atoms, the structure of the periodic table, and the properties of chemical bonds. It has also been applied in the development of technologies such as transistors, lasers, and computer chips.

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