dorsal/arxiv
View SchemaInteraction-Free Measurement in mesoscopic systems and the reduction postulate
| Authors | S. A. Gurvitz |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9607029 |
| URL | https://arxiv.org/abs/quant-ph/9607029 |
Abstract
We show that a noninvasive,``negative-result measurement'' can be realized in quantum dot systems. The measurement process is studied by applying the Schr\"odinger equation to the whole system (including the detector). We demonstrate that the possibility of observing a particular state out of coherent superposition leads to collapse of the corresponding nondiagonal density-matrix elements of the measured system. No additional reduction postulate is needed. Experimental consequences of the collapse time and the relativistic requirement are discussed for mesoscopic and optical systems.
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"abstract": "We show that a noninvasive,``negative-result measurement\u0027\u0027 can be realized in\nquantum dot systems. The measurement process is studied by applying the\nSchr\\\"odinger equation to the whole system (including the detector). We\ndemonstrate that the possibility of observing a particular state out of\ncoherent superposition leads to collapse of the corresponding nondiagonal\ndensity-matrix elements of the measured system. No additional reduction\npostulate is needed. Experimental consequences of the collapse time and the\nrelativistic requirement are discussed for mesoscopic and optical systems.",
"arxiv_id": "quant-ph/9607029",
"authors": [
"S. A. Gurvitz"
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"title": "Interaction-Free Measurement in mesoscopic systems and the reduction postulate",
"url": "https://arxiv.org/abs/quant-ph/9607029"
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