# Exploring Decay of Electrons in Magnetic Field

• elementHTTP
In summary, in the lecture, Susskind mentions that an electron in a magnetic field can emit a photon with a certain probability. This raises questions about the time it takes for emission to occur, whether the decay time depends on spin orientation, the direction of photon emission, and how to detect the photon. There are experiments and data available for these questions. Additionally, a fun hypothetical question asks how many electrons would need to decay in a magnetic field with a probability of 1 to create a 6kW laser-like beam.
elementHTTP
So i was watching Susskind lectures on entanglements
and there he mention decay (electron in magnetic field emits a photon whit certain probability )

1. How long you have to wait for emission to occur ? (for probability of 1/2 )
2. Dose decay time depend on spin orientation ? ( kinda like probability of photon emission depends on spin orientation)
3. In witch direction is photon emitted ?
4 How do you detect that photon ?

It will be awesome if you can provide links for some of those experiments/data :D
Thanks

+ random fun question
hypothetically speaking how much electron decaying in magnetic field ( with probability of 1 ) will it take to create 6kW laser like beam :D :D :D

elementHTTP said:
So i was watching Susskind lectures on entanglements
and there he mention decay (electron in magnetic field emits a photon whit certain probability )

1. How long you have to wait for emission to occur ? (for probability of 1/2 )
2. Dose decay time depend on spin orientation ? ( kinda like probability of photon emission depends on spin orientation)
3. In witch direction is photon emitted ?
4 How do you detect that photon ?

It will be awesome if you can provide links for some of those experiments/data :D
Thanks

+ random fun question
hypothetically speaking how much electron decaying in magnetic field ( with probability of 1 ) will it take to create 6kW laser like beam :D :D :D

2. is easy. The answer is no. The probability of emission does depend on the prepared orientation, but since

(1) the electron is then in a specific superimposition of the up state and the down state w.r.t. the magnetic field and
(2) the down state does not decay at all

the decay time constant is the same as for the pure up state.

Last edited:

## 1. What is the decay of electrons in magnetic field?

The decay of electrons in magnetic field is a process in which electrons lose their energy and ultimately disappear while moving through a magnetic field.

## 2. Why is it important to study the decay of electrons in magnetic field?

Studying the decay of electrons in magnetic field is important because it helps us understand the behavior of particles in magnetic fields and can have applications in technologies such as particle accelerators and MRI machines.

## 3. How does a magnetic field affect the decay of electrons?

A magnetic field can cause the decay of electrons by exerting a force on them, causing them to lose energy and eventually disappear.

## 4. What are the factors that can influence the decay of electrons in magnetic field?

The factors that can influence the decay of electrons in magnetic field include the strength and direction of the magnetic field, the energy of the electrons, and the composition of the material the electrons are passing through.

## 5. What are some experiments that have been conducted to study the decay of electrons in magnetic field?

Some experiments that have been conducted to study the decay of electrons in magnetic field include the Stern-Gerlach experiment, the Mossbauer effect, and various experiments using particle accelerators.

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