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PI1. Non-relativistic Schrödinger Equation (without potential)
The Schrödinger equation is like the “manual” that governs the behavior of particles in the quantum world. It tells us how the “wave” that represents a particle (called the wave function) changes over time. In a situation where nothing influences the particle (no forces or potential energy), the equation describes how the particle moves freely through space.
In simple terms, the Schrödinger equation describes how the probabilities of a particle’s possible location change over time.
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2. What is a wave function?
A wave function is a way to describe the possible location of a particle. However, in quantum mechanics, we cannot know exactly where a particle is at a given moment. Instead, the wave function provides us with a "cloud" of probabilities. This cloud shows where the particle is more or less likely to be found.
The shape of this wave tells us how the particle behaves: it can oscillate, spread out, or move over time. Imagine it as a soft, blurry glow around where the particle might be, with brighter areas indicating a higher likelihood of finding it there.
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3. What is a Gaussian wave packet?
A Gaussian wave packet is a special type of wave function. It describes a particle that is relatively localized—in other words, we have a good idea of where it is. But since we’re dealing with quantum mechanics, there’s always some uncertainty.
You can imagine it like this: the particle is represented by a small “bump” that moves over time. This bump is concentrated mostly in one spot, but it’s not perfectly precise. Over time, the bump spreads out due to the uncertainty in the particle’s position.
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4. How are they related?
The Gaussian wave packet is one way of describing a particle in quantum mechanics.
Via erik_alan_normon
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