dorsal/arxiv
View SchemaStatistical Constraints on State Preparation for a Quantum Computer
| Authors | Subhash Kak |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0010109 |
| URL | https://arxiv.org/abs/quant-ph/0010109 |
| DOI | 10.1007/s12043-001-0019-7 |
| Journal | Pramana, vol. 57, pp. 683-688, 2001 |
Abstract
Quantum computing algorithms require that the quantum register be initially present in a superposition state. To achieve this, we consider the practical problem of creating a coherent superposition state of several qubits. Owing to considerations of quantum statistics, this requires that the entropy of the system go down. This, in turn, has two practical implications: (i) the initial state cannot be controlled; (ii) the temperature of the system must be reduced. These factors, in addition to decoherence and sensitivity to errors, must be considered in the implementation of quantum computers.
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"abstract": "Quantum computing algorithms require that the quantum register be initially\npresent in a superposition state. To achieve this, we consider the practical\nproblem of creating a coherent superposition state of several qubits. Owing to\nconsiderations of quantum statistics, this requires that the entropy of the\nsystem go down. This, in turn, has two practical implications: (i) the initial\nstate cannot be controlled; (ii) the temperature of the system must be reduced.\nThese factors, in addition to decoherence and sensitivity to errors, must be\nconsidered in the implementation of quantum computers.",
"arxiv_id": "quant-ph/0010109",
"authors": [
"Subhash Kak"
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"doi": "10.1007/s12043-001-0019-7",
"journal_ref": "Pramana, vol. 57, pp. 683-688, 2001",
"title": "Statistical Constraints on State Preparation for a Quantum Computer",
"url": "https://arxiv.org/abs/quant-ph/0010109"
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