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Quantum Tech
If you would still feel rusty on your foundational quantum knowledge, please visit Quantum 101 - Alt. Resources Quantum technologies have the potential to dramatically change certain areas and industries as know it as we apply it and as the sector develops. There are 4 main kinds of quantum technologies that will come up:
1. Quantum computers
- These devices are here and san speed up certain calculations dramatically
- Not just both 0 and 1 but rather in between 0 and 1
- Can process much more information with qubits than bits
- This speedup only works with certain calculations
- To be useful - need to bring a large number of qubits (~1 mill qubits)
- Question is not will it work, it is rather will it scale
- quantum computers already exist today
- yet status is similar to how nuclear fusion worked 50 years ago, effective and still in process
2. Quantum internet
- Information transmitted with quantum effects
- Uses quantum cryptography as a security protocol
- It irreversibly changes the state of an information particle
- Cannot transfer info faster than speed of light or with any other quantum effect
- quantum computer can break current protocols
- Quantum internet can be safe from hacking by quantum computers
- Caveat - Post quantum or quantum-safe cryptography
- People that work on quantum things dont like to mention this though
3. Quantum metrology
- Collection of measurements to improve quantum effects
- Medicine and material science
- Can make do with very few particles with minimal damage to sample
- Most promising quantum technology
4. Quantum simulations
- Very useful in trying to understand complicated system
- By reproducing system that you can control better to better predict system
- Dramatic shift in modern physics as you can take out mathematics
- Instead of simulating with mathematics you model it directly with another system
- Simulate particles similar to the higgs which you cannot do in any other way
- though headlines like the simulated wormhole is nonsense via source
5. Quantum Sensors
Next up let's see how we use them -->
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