Meltdown in quantum computers needs not occur: Nuclear experiments show a way out
Abstract
We show that phase memory can be much longer than energy relaxation in systems with exponentially large dimensions of Hilbert space; this finding is documented by fifty years of nuclear experiments, though the information is somewhat hidden. For quantum computers Hilbert spaces of dimension $2^{100}$ or larger will be typical and therefore this effect may contribute significantly to reduce the problems of scaling of quantum computers to a useful number of qubits.
- Publication:
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arXiv e-prints
- Pub Date:
- February 2005
- DOI:
- 10.48550/arXiv.quant-ph/0502050
- arXiv:
- arXiv:quant-ph/0502050
- Bibcode:
- 2005quant.ph..2050F
- Keywords:
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- Quantum Physics;
- Nuclear Experiment;
- Nuclear Theory
- E-Print:
- 11 pages, 3 postscript figures (low resolution). Uses scicite.sty which is included