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THE WORLD OF BITS AND QUBITS IN THE QUANTUM REVOLUTION

  • Part of what makes actually building a quantum computer so difficult is that qubits are notoriously unstable. To make calculations, researchers have to hold these qubits very precariously in certain energy states, but vibration from highways or even ambient room temperature can be enough disturbance to send these qubits into a state of decoherence.   Quantum computers currently need to be kept at very close to absolute zero (-450 degrees Fahrenheit) in giant freezers.  Developing warm quantum computing will provide huge cost savings.  Additionally, quantum computers right now have to dedicate some qubits to keeping track of accumulating errors due to those decoherent disturbances.
  • The part of physics that only works when no one is looking.
  • deals with the idea that all objects have wave-like properties. If an object’s wave-like nature is split in two, then the two waves may coherently interfere with each other in such a way as to form a single state that is a superposition of the two states.  As a result of an interaction, the wave functions of the system and the measuring device become entangled with each other. Decoherence happens when different portions of the system’s wave function become entangled in different ways with the measuring device.
  • The quantum world is mostly digitized.  It is quantized in packets of photon randomness, held in a superposition state.  This is the quantum communications channel.  Quantum information can be copied, transferred, and shared.  The entangled state of multiple qubits negates the error process.  There is strength in numbers, when a qubit is shared, the inherent error can’t survive,  Decoherence is destroyed.
  • A photon leaves no footprint. The photon’s information is isolated from the rest of the world, in a coherent pattern.  Pattern coherence, however, can be lost.  Quantum coherence is like a magic trick, if someone is watching, the trick doesn’t happen,  Quantum coherence relies on information isolation.  That’s why we don’t see examples in our daily macroscopic observations.  If you can see it, it doesn’t happen.
  • The entire universe is a vast network of continuous information exchanges.  When a particle separates from its entanglement, the quantum information exchange is transacted.  The quantum information in an isolated information system.   Bits have noise, qubits have discordance.
  • Decoherence is destroyed within multiple entangled information packets.  Information is then reconstructed by the receiver.  In the quantum world there are a lot of subtle things going on.
      • There are bit and qubit information channels.
        Thanks to entanglement, qubits can hold up to two bits of data and transmit data between qubits up to 1400 meters apart.  Quantum computing relies on quantum bits, or “qubits”, which can also represent a 0 or a 1. The crazy thing is, qubits can also achieve a mixed state, called a “superposition” where they are both 1 and 0 at the same time. This ambiguity – the ability to both “be” and “not be” – is key to the power of quantum computing.
        Bit and qubit  factoring of numbers:
          bit factoring time        qubit factoring bit     (estimates)
                         100#  20 min.              100# 1/10thsec.
                         200#  3yr                       200# 1 sec.
                          500#  1 billion yrs          500# 100 sec.
        Every symmetry physics law leads to a conservation law, and every conservation law arises from a symmetry in the laws of physics.  
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