Experimental Test of Universal Conductance Fluctuations by means of Wave-Chaotic Microwave Cavities
Phys. Rev. B 74, 195326 (2006) The mathematical equivalence of the time-independent Schrodinger equation and the Helmholtz equation is exploited to provide a novel means of studying universal conductance fluctuations in ballistic chaotic mesoscopic systems using a two-dimensional microwave-cavity. T...
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| creator | Hemmady, Sameer Hart, James Zheng, Xing AntonsenJr, Thomas M Ott, Edward Anlage, Steven M |
| description | Phys. Rev. B 74, 195326 (2006) The mathematical equivalence of the time-independent Schrodinger equation and
the Helmholtz equation is exploited to provide a novel means of studying
universal conductance fluctuations in ballistic chaotic mesoscopic systems
using a two-dimensional microwave-cavity. The classically chaotic ray
trajectories within a suitably-shaped microwave cavity play a role analogous to
that of the chaotic dynamics of non-interacting electron transport through a
ballistic quantum dot in the absence of thermal fluctuations. The microwave
cavity is coupled through two single-mode ports and the effect of non-ideal
coupling between the ports and cavity is removed by a previously developed
method based on the measured radiation impedance matrix. The Landauer-Buttiker
formalism is applied to obtain the conductance of a corresponding mesoscopic
quantum-dot device. We find good agreement for the probability density
functions (PDFs) of the experimentally derived surrogate conductance, as well
as its mean and variance, with the theoretical predictions of Brouwer and
Beenakker. We also observe a linear relation between the quantum dephasing
parameter and the cavity ohmic loss parameter. |
| doi_str_mv | 10.48550/arxiv.cond-mat/0606650 |
| format | Article |
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the Helmholtz equation is exploited to provide a novel means of studying
universal conductance fluctuations in ballistic chaotic mesoscopic systems
using a two-dimensional microwave-cavity. The classically chaotic ray
trajectories within a suitably-shaped microwave cavity play a role analogous to
that of the chaotic dynamics of non-interacting electron transport through a
ballistic quantum dot in the absence of thermal fluctuations. The microwave
cavity is coupled through two single-mode ports and the effect of non-ideal
coupling between the ports and cavity is removed by a previously developed
method based on the measured radiation impedance matrix. The Landauer-Buttiker
formalism is applied to obtain the conductance of a corresponding mesoscopic
quantum-dot device. We find good agreement for the probability density
functions (PDFs) of the experimentally derived surrogate conductance, as well
as its mean and variance, with the theoretical predictions of Brouwer and
Beenakker. We also observe a linear relation between the quantum dephasing
parameter and the cavity ohmic loss parameter.</description><identifier>DOI: 10.48550/arxiv.cond-mat/0606650</identifier><language>eng</language><subject>Physics - Disordered Systems and Neural Networks ; Physics - Mesoscale and Nanoscale Physics</subject><creationdate>2006-06</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/cond-mat/0606650$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.cond-mat/0606650$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1103/PhysRevB.74.195326$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Hemmady, Sameer</creatorcontrib><creatorcontrib>Hart, James</creatorcontrib><creatorcontrib>Zheng, Xing</creatorcontrib><creatorcontrib>AntonsenJr, Thomas M</creatorcontrib><creatorcontrib>Ott, Edward</creatorcontrib><creatorcontrib>Anlage, Steven M</creatorcontrib><title>Experimental Test of Universal Conductance Fluctuations by means of Wave-Chaotic Microwave Cavities</title><description>Phys. Rev. B 74, 195326 (2006) The mathematical equivalence of the time-independent Schrodinger equation and
the Helmholtz equation is exploited to provide a novel means of studying
universal conductance fluctuations in ballistic chaotic mesoscopic systems
using a two-dimensional microwave-cavity. The classically chaotic ray
trajectories within a suitably-shaped microwave cavity play a role analogous to
that of the chaotic dynamics of non-interacting electron transport through a
ballistic quantum dot in the absence of thermal fluctuations. The microwave
cavity is coupled through two single-mode ports and the effect of non-ideal
coupling between the ports and cavity is removed by a previously developed
method based on the measured radiation impedance matrix. The Landauer-Buttiker
formalism is applied to obtain the conductance of a corresponding mesoscopic
quantum-dot device. We find good agreement for the probability density
functions (PDFs) of the experimentally derived surrogate conductance, as well
as its mean and variance, with the theoretical predictions of Brouwer and
Beenakker. We also observe a linear relation between the quantum dephasing
parameter and the cavity ohmic loss parameter.</description><subject>Physics - Disordered Systems and Neural Networks</subject><subject>Physics - Mesoscale and Nanoscale Physics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqNjrEOgjAYhLs4GPUZ_BdHoEYh7g3ExQ3jSH7rT2wCLWlLhbe3Gh_A6S6Xu9zH2HbP0-Mpz3mGdlIhlUY_kh59xgteFDlfMllOA1nVk_bYQU3Og2nhqlUg62Ii4mKUHrUkqLroRvTKaAf3GXrCaGL9hoES8UTjlYSLkta8YgICg_KK3JotWuwcbX66YruqrMU5-UI1Q7xHOzcfuCbCNT-4w7-9N2znTHQ</recordid><startdate>20060626</startdate><enddate>20060626</enddate><creator>Hemmady, Sameer</creator><creator>Hart, James</creator><creator>Zheng, Xing</creator><creator>AntonsenJr, Thomas M</creator><creator>Ott, Edward</creator><creator>Anlage, Steven M</creator><scope>GOX</scope></search><sort><creationdate>20060626</creationdate><title>Experimental Test of Universal Conductance Fluctuations by means of Wave-Chaotic Microwave Cavities</title><author>Hemmady, Sameer ; Hart, James ; Zheng, Xing ; AntonsenJr, Thomas M ; Ott, Edward ; Anlage, Steven M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_cond_mat_06066503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Physics - Disordered Systems and Neural Networks</topic><topic>Physics - Mesoscale and Nanoscale Physics</topic><toplevel>online_resources</toplevel><creatorcontrib>Hemmady, Sameer</creatorcontrib><creatorcontrib>Hart, James</creatorcontrib><creatorcontrib>Zheng, Xing</creatorcontrib><creatorcontrib>AntonsenJr, Thomas M</creatorcontrib><creatorcontrib>Ott, Edward</creatorcontrib><creatorcontrib>Anlage, Steven M</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hemmady, Sameer</au><au>Hart, James</au><au>Zheng, Xing</au><au>AntonsenJr, Thomas M</au><au>Ott, Edward</au><au>Anlage, Steven M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental Test of Universal Conductance Fluctuations by means of Wave-Chaotic Microwave Cavities</atitle><date>2006-06-26</date><risdate>2006</risdate><abstract>Phys. Rev. B 74, 195326 (2006) The mathematical equivalence of the time-independent Schrodinger equation and
the Helmholtz equation is exploited to provide a novel means of studying
universal conductance fluctuations in ballistic chaotic mesoscopic systems
using a two-dimensional microwave-cavity. The classically chaotic ray
trajectories within a suitably-shaped microwave cavity play a role analogous to
that of the chaotic dynamics of non-interacting electron transport through a
ballistic quantum dot in the absence of thermal fluctuations. The microwave
cavity is coupled through two single-mode ports and the effect of non-ideal
coupling between the ports and cavity is removed by a previously developed
method based on the measured radiation impedance matrix. The Landauer-Buttiker
formalism is applied to obtain the conductance of a corresponding mesoscopic
quantum-dot device. We find good agreement for the probability density
functions (PDFs) of the experimentally derived surrogate conductance, as well
as its mean and variance, with the theoretical predictions of Brouwer and
Beenakker. We also observe a linear relation between the quantum dephasing
parameter and the cavity ohmic loss parameter.</abstract><doi>10.48550/arxiv.cond-mat/0606650</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Disordered Systems and Neural Networks Physics - Mesoscale and Nanoscale Physics |
| title | Experimental Test of Universal Conductance Fluctuations by means of Wave-Chaotic Microwave Cavities |
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