dorsal/arxiv
View SchemaSignatures of quantum behavior in single-qubit weak measurements
| Authors | Rusko Ruskov, Alexander N. Korotkov, Ari Mizel |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0505094 |
| URL | https://arxiv.org/abs/quant-ph/0505094 |
| DOI | 10.1103/PhysRevLett.96.200404 |
| Journal | Phys. Rev. Lett 96, 200404 (2006) |
Abstract
With the recent surge of interest in quantum computation, it has become very important to develop clear experimental tests for ``quantum behavior'' in a system. This issue has been addressed in the past in the form of the inequalities due to Bell and those due to Leggett and Garg. These inequalities concern the results of ideal projective measurements, however, which are experimentally difficult to perform in many proposed qubit designs, especially in many solid state qubit systems. Here, we show that weak continuous measurements, which are often practical to implement experimentally, can yield particularly clear signatures of quantum coherence, both in the measured correlation functions and in the measured power spectrum.
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"abstract": "With the recent surge of interest in quantum computation, it has become very\nimportant to develop clear experimental tests for ``quantum behavior\u0027\u0027 in a\nsystem. This issue has been addressed in the past in the form of the\ninequalities due to Bell and those due to Leggett and Garg. These inequalities\nconcern the results of ideal projective measurements, however, which are\nexperimentally difficult to perform in many proposed qubit designs, especially\nin many solid state qubit systems. Here, we show that weak continuous\nmeasurements, which are often practical to implement experimentally, can yield\nparticularly clear signatures of quantum coherence, both in the measured\ncorrelation functions and in the measured power spectrum.",
"arxiv_id": "quant-ph/0505094",
"authors": [
"Rusko Ruskov",
"Alexander N. Korotkov",
"Ari Mizel"
],
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"quant-ph",
"cond-mat.mes-hall"
],
"doi": "10.1103/PhysRevLett.96.200404",
"journal_ref": "Phys. Rev. Lett 96, 200404 (2006)",
"title": "Signatures of quantum behavior in single-qubit weak measurements",
"url": "https://arxiv.org/abs/quant-ph/0505094"
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