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The Strange Quantum World
There's another world below atoms
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Quantum Biology
Trace light, electrons, protons, spins, vision, respiration, mutation, protection, and bioluminescence through living chemistry.
Reality before vocabulary
Foundations
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Superposition
The particle is everywhere at once
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The Wave Function
ψ(x,t) — the math of possibility
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Measurement
Looking is what makes things real
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The Double Slit
One particle going through two slits
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Wave-Particle Duality
Light is both — and so are you
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Uncertainty
Some things can't be known at the same time
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Quantum Tunneling
Particles walk through walls
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The Schrödinger Equation
The equation that runs the universe
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Stationary States
Standing waves in a quantum world
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The Particle in a Box
What happens when you trap a wave
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Hydrogen
How an electron orbits without orbiting
How matter gets its structure
Atomic & Molecular Physics
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Spin
Particles spin without spinning
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The Stern-Gerlach Experiment
The experiment that found spin
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Pauli Exclusion
Why every atom has a shape
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Multi-Electron Atoms
When electrons have to share a house
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Molecular Orbitals
Two atoms, one shared cloud
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Chemical Bonding
Why atoms stick together
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Spectroscopy
How light tells you what something is
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Lasers
Coherent light, plain and simple
Measurement pushed to the edge
Quantum Sensing
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Quantum Sensing
Measuring the universe more precisely than physics should allow
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Atomic Clocks
The most accurate clocks in existence
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NV Centers
A defect in diamond that can sense a single electron
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Quantum Gravity Sensing
Detecting the pull of a single grain of rice
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LIGO
How LIGO detected colliding black holes
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Quantum Imaging
Photographing things with light that never touched them
Quantum events inside living chemistry
Quantum Biology
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Photosynthetic Energy Transfer
Living antennas guide packets of sunlight
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Enzyme Tunneling
Enzymes make room for quantum shortcuts
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Radical-Pair Magnetoreception
A chemical reaction can become a compass
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Vision Photochemistry
Seeing begins when one molecule changes shape
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Olfaction and Vibrations
Smell may listen for molecular vibrations
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Respiratory Electron Transfer
Life runs on carefully stepped electron falls
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Proton Pumps
Cells use quantum-scale gates for protons
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DNA Proton Transfer
A proton in the wrong place can change a letter
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Decoherence in Biology
Warm life keeps some quantum effects and loses others
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Photosynthetic Protection
Plants dump dangerous energy before it burns them
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Bioluminescence
Living chemistry releases light from an excited state
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Limits of Quantum Biology
Quantum biology is powerful because it is specific