QUANTUM COMPUTER

Quanttum computers A quantum computer is a computer that exploits quantum mechanical phenomena. On small scales, physical matter exhibits properties of both particles and waves, and quantum computing leverages this behavior using specialized hardware. Classical physics cannot explain the operation of these quantum devices, and a scalable quantum computer could perform some calculations exponentially faster than any modern "classical" computer. In particular, a large-scale quantum computer could break widely used encryption schemes and aid physicists in performing physical simulations; however, the current state of the art is largely experimental and impractical, with several obstacles to useful applications. The basic unit of information in quantum computing, the qubit (or "quantum bit"), serves the same function as the bit in classical computing. However, unlike a classical bit, which can be in one of two states (a binary), a qubit can exist in a superposition of its two "basis" states, which loosely means that it is in both states simultaneously. When measuring a qubit, the result is a probabilistic output of a classical bit. If a quantum computer manipulates the qubit in a particular way, wave interference effects can amplify the desired measurement results. The design of quantum algorithms involves creating procedures that allow a quantum computer to perform calculations efficiently and quickly. Physically engineering high-quality qubits has proven challenging. If a physical qubit is not sufficiently isolated from its environment, it suffers from quantum decoherence, introducing noise into calculations. National governments have invested heavily in experimental research that aims to develop scalable qubits with longer coherence times and lower error rates. Two of the most promising technologies are superconductors (which isolate an electrical current by eliminating electrical resistance) and ion traps (which confine a single atomic particle using electromagnetic fields). In principle, a classical computer can solve the same computational problems as a quantum computer, given enough time. Quantum advantage comes in the form of time complexity rather than computability, and quantum complexity theory shows that some quantum algorithms are exponentially more efficient than the best known classical algorithms. A large-scale quantum computer could in theory solve computational problems unsolvable by a classical computer in any reasonable amount of time. While claims of such quantum supremacy have drawn significant attention to the discipline, near-term practical use cases remain limited. i postulate that by 2124 AD Anno Domini in the year of our Lord Jesus Christ 100 years from today Sunday December 22 2024 humanity will have quantum computers replace digital computers 
https://www.youtube.com/watch?v=0HFzTYlhT2E
New quantum computers - Potential and pitfalls | DW Documentary
https://www.youtube.com/watch?v=uPOA4-Hm7og
Google's Quantum Lab in California holds the future of computing
https://www.youtube.com/watch?v=qQviI1d_hFA
Michio Kaku: Quantum computing is the next revolution
https://www.youtube.com/watch?v=KwsW-iCToEY
The incredible physics behind quantum computing | Brian Greene, Michio Kaku, & more | Big Think
https://www.youtube.com/watch?v=FgZ-8NFSysA
Step inside the Google Quantum AI lab
https://www.youtube.com/watch?v=ihZXl33t8So
Microsoft's Topological Quantum Computer Explained
https://www.youtube.com/watch?v=-UlxHPIEVqA&t=35s
The Map of Quantum Computing - Quantum Computing Explained
https://www.youtube.com/watch?v=IkOicF8qBFU
A Practical Quantum Computer Is Coming! But When?