Quantum waves—the proper basis for low dissipation quantum computing
✍ Scribed by D.K Ferry; R Akis; I Knezevic
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 86 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0167-9317
No coin nor oath required. For personal study only.
✦ Synopsis
The promise of more effective computation led to quantum computers, which are supposed to surpass binary, digital computers. This is an outgrowth of the search for dissipation-free computation, in which the bit state is switched 'adiabatically.' Implementations in which the two local minima are at different energy levels are unstable. Using super-symmetric quantum mechanics, we show that natural transitions occur between degenerate 2 eigenstates. Then we can write, quite generally, that the qubit should satisfy the Hamiltonian H 5 k . 0, and we associate k with the 'momentum' in Hilbert space. That is, the fundamental structure of the quantum qubit should be that of a quantum plane wave.