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Looking for an intro to quantum mechanics? Wondering what quantum mechanics is all about? This intro to quantum mechanics provides a basic understanding of quantum mechanics without getting too complicated! (Perfect if you’re a beginner!)

Intro to quantum mechanics for beginners

intro to quantum mechanics

Date published: March 24 2021

Looking for an intro to quantum mechanics? Wondering what quantum mechanics is all about? This intro to quantum mechanics provides a basic understanding of quantum mechanics without getting too complicated! (Perfect if you’re a beginner!)

intro to quantum physics

Quantum mechanics is such a fascinating topic as it goes over how our world works at a foundational level. It studies the smallest of smallest particles that make up everything we see around us.

With that often comes a lot of confusion, as quantum mechanics can be a very complex topic, especially for the beginner.

After doing A LOT of research, I finally feel like I have a good foundational understanding when it comes to the intro to quantum physics and quantum mechanics, which I’m going to share with you today, in the plainest, english terms, so that you can also get a good understanding to the intro to quantum mechanics as well!

This post is all about the intro to quantum mechanics!




Intro to quantum mechanics for beginners

Quantum mechanics VS quantum physics

quantum mechanics for dummies

First and foremost, let’s address the terms used that go by the names of “quantum mechanics” and “quantum physics”, as this is something I was a little bit confused about at first. Based on my understanding, quantum physics and quantum mechanics mean the same thing and are simply two, different, interchangeable terms, used for the same subject. So for this reason, you may see these terms used interchangeably in this post.

What is quantum mechanics?

Quantum mechanics studies the smallest of smallest particles, or “building blocks”, that make up our world. Think in terms of atoms - well, it studies particles that are even smaller than this!

Intro to quantum mechanics

Let’s take a look at how our world is broken down.

Everything that makes up our world is made up of atoms. This may ring a bell from chemistry class - example of atoms being hydrogen, oxygen, etc. If you look up the periodic table of elements, you can see all the different types of atoms that exist in our world.

intro to quantum mechanics pdf

Everything, from the buildings around us, to the trees around us, to the air we breathe, to our food, to our human bodies, are made up of atoms.

Here is the breakdown of an atom:

We have the atom, which is made up of subatomic particles such as protons, electrons, and neutrons. And these subatomic particles are made up of quarks. And quarks are simply energy/frequencies.

quantum physics




The truth about quantum mechanics

After doing a lot of research on this topic, I’ve come to find out that even physicists have admitted to not knowing it all, and that there is still a piece of “mystery” to this whole topic, due to the consciousness element (more to come on that).

Despite this, there’s still a ton of fascinating information worth looking into if you are just as fascinated as me when it comes to the study of our world!

Particles can act as both a wave and as a particle

intro to quantum mechanics

Alright, so this is the first topic that I want to dive into when it comes to the intro to quantum mechanics. This is a fundamental aspect of quantum mechanics.

Particles can act as both a wave and as a particle. So what does this mean? (And we’ll get into the scientific backings of this in a moment). In plain english terms, this simply means that particles such as electrons, etc., can be in two states: they can either be perceived, or not perceived. We can either be aware of it, or unaware of it. In other words, it is either “real” in our reality, or it is not “real” and does not appear to exist based on our human sense.

Let’s dive into the meaning of both a wave and a particle.

Wave

A wave is defined as a wave of possibilities, or a wave of probabilities. What this simply means is that when a particle is in a wave state, it is in a state where it has many many possibilities. Let’s take an electron that is part of the hydrogen atom for example.

quantum physics for beginners

Here’s the best way I’ve come to understand it:

When that electron is in a waveform, it is not perceivable just yet, however it contains many possibilities on how it can become a particle.

For example, many things in our world contain hydrogen. From hydrogen peroxide, to our human body, to many more forms. And so that electron, that is in a wave of possibility, has the potential to become a perceived particle in the form of hydrogen, that we can perceive as “real” in our world. 




This is just one example, but essentially, everything in our world is made up of these small, subatomic particles, which can behave as both waves or particles.

In other words, because everything in our word is made up of these subatomic particles, we could even say that events, situations, and circumstances can behave as both waves or particles. And in plain english, simply means, take part of our life, or don’t take part of our life.

Particle

On the other hand, we have the particle form (which we’ve talked a little bit about in the above section).

A particle form is likely much easier to understand - it is simply what we can perceive as “real” in our reality.

Again, particles can behave as both a wave or a particle, and that is what the experiment below will prove to us.

The double slit experiment

introduction to quantum mechanics book

Before I start talking about the double slit experiment, I highly recommend that you watch this short video of the double slit experiment. That way, you’ll have a better understanding of what we’re talking about.

Let’s go over a brief summary of what happened during the double slit experiment.

Physicists shot particles at a wall through a double slit. What SHOULD have happened is a pattern of two lines on the wall behind.

introduction to quantum mechanics solution

But instead, the pattern created on the wall behind were multiple lines.

quantum mechanics

The same pattern that would've happened if waves of water were to go through the slit and hit the back wall (they show this at the beginning of the video).

And so, the physicists wanted to take a closer look at what exactly was going on when the particles were shot through the double slit.

When they set up a measuring device, the particles started to create the “double slit pattern” that was originally expected.

intro to quantum mechanics

So, what did the double slit experiment tell us? Two major conclusions were concluded from this experiment.

Conclusion #1: particles can act as both waves or particles

This is the scientific explanation to what we’ve been talking about earlier, how particles can be in either a waveform or a particle form

Conclusion #2: the observer effect

The observer effect states that waves collapse as particles when observed. As we can see in the experiment, the differentiating factor between whether the particle acted as a particle or a wave was the fact that it was being observed by the measuring device. The particles could sense that they were being observed, and acted as a particle.

intro to quantum physics

Intro to quantum mechanics: the takeaway points

So, what does all of this tell us? What’s so fascinating about all of this?

intro to quantum mechanics




Now that you have a better understanding of the smallest particles that make up the building blocks in our world, and how they work, you’ll be able to understand this.

We’ve concluded that particles can act as both a wave or a particle based on whether it’s observed.

Here’s the thing: we are all observers of our own reality. We can choose to “observe” the particles we want. In other words, when we choose to “observe” the particles we want, we choose to create the reality we want (because everything in our world is made up of these particles).

quantum mechanics for beginners

Stay tuned for my next post, where I’m going to explain the relation between quantum physics, the Law of Attraction, and how our thoughts create our reality! You won’t want to miss it!


This post was all about the intro to quantum mechanics for beginners! You now have a basic understanding of the quantum physics fundamentals - in other words, how our world works!

intro to quantum mechanics
intro to quantum mechanics
intro to quantum mechanics

Welcome to the Fituristically Her blog, where we talk about all things Law of Attraction, spirituality, mindset, and more!

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