Multilevel resonant tunneling in the presence of flux and charge noise
Macroscopic resonant tunneling (MRT) in flux qubits is an important experimental tool for extracting information about noise produced by a qubit's surroundings. Here we present a detailed derivation of the MRT signal in the RF-SQUID flux qubit allowing for effects of flux and charge fluctuation...
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| creator | Smirnov, Anatoly Y Whiticar, Alexander Amin, Mohammad H |
| description | Macroscopic resonant tunneling (MRT) in flux qubits is an important
experimental tool for extracting information about noise produced by a qubit's
surroundings. Here we present a detailed derivation of the MRT signal in the
RF-SQUID flux qubit allowing for effects of flux and charge fluctuations on the
interwell and intrawell transitions in the system. Taking into consideration
transitions between the ground state in the initial well and excited states in
the target well enable us to characterize both flux and charge noise source
affecting the operation of the flux qubit. The MRT peak is formed by the
dominant noise source affecting specific transition, with flux noise
determining the lineshape of the ground to ground tunneling, whereas charge
noise reveals itself as additional broadening of the ground to excited peak. |
| doi_str_mv | 10.48550/arxiv.2209.10605 |
| format | Article |
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experimental tool for extracting information about noise produced by a qubit's
surroundings. Here we present a detailed derivation of the MRT signal in the
RF-SQUID flux qubit allowing for effects of flux and charge fluctuations on the
interwell and intrawell transitions in the system. Taking into consideration
transitions between the ground state in the initial well and excited states in
the target well enable us to characterize both flux and charge noise source
affecting the operation of the flux qubit. The MRT peak is formed by the
dominant noise source affecting specific transition, with flux noise
determining the lineshape of the ground to ground tunneling, whereas charge
noise reveals itself as additional broadening of the ground to excited peak.</description><identifier>DOI: 10.48550/arxiv.2209.10605</identifier><language>eng</language><subject>Physics - Quantum Physics ; Physics - Superconductivity</subject><creationdate>2022-09</creationdate><rights>http://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2209.10605$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2209.10605$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Smirnov, Anatoly Y</creatorcontrib><creatorcontrib>Whiticar, Alexander</creatorcontrib><creatorcontrib>Amin, Mohammad H</creatorcontrib><title>Multilevel resonant tunneling in the presence of flux and charge noise</title><description>Macroscopic resonant tunneling (MRT) in flux qubits is an important
experimental tool for extracting information about noise produced by a qubit's
surroundings. Here we present a detailed derivation of the MRT signal in the
RF-SQUID flux qubit allowing for effects of flux and charge fluctuations on the
interwell and intrawell transitions in the system. Taking into consideration
transitions between the ground state in the initial well and excited states in
the target well enable us to characterize both flux and charge noise source
affecting the operation of the flux qubit. The MRT peak is formed by the
dominant noise source affecting specific transition, with flux noise
determining the lineshape of the ground to ground tunneling, whereas charge
noise reveals itself as additional broadening of the ground to excited peak.</description><subject>Physics - Quantum Physics</subject><subject>Physics - Superconductivity</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNotz71OwzAUhmEvDKhwAUycG0iw4794RBUFpCKW7pGxj1tL5qRykqrcPVCYvuGVPulh7E7wVvVa8wdfz_nUdh13reCG62u2eVvKnAuesEDFaSRPM8wLEZZMe8gE8wHh-JOQAsKYIJXlDJ4ihIOvewQa84Q37Cr5MuHt_67YbvO0W7802_fn1_XjtvHG6iZi6rW3ITgjlbQalXNRcymksj72xhkRlBOd49b2EqUy0okUsUN0H0YIuWL3f7cXyHCs-dPXr-EXNFxA8hv4pEUl</recordid><startdate>20220921</startdate><enddate>20220921</enddate><creator>Smirnov, Anatoly Y</creator><creator>Whiticar, Alexander</creator><creator>Amin, Mohammad H</creator><scope>GOX</scope></search><sort><creationdate>20220921</creationdate><title>Multilevel resonant tunneling in the presence of flux and charge noise</title><author>Smirnov, Anatoly Y ; Whiticar, Alexander ; Amin, Mohammad H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a675-def85a7cc9634375e499d5031347ad86961c4912907783e346391fde2ee9b6113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Physics - Quantum Physics</topic><topic>Physics - Superconductivity</topic><toplevel>online_resources</toplevel><creatorcontrib>Smirnov, Anatoly Y</creatorcontrib><creatorcontrib>Whiticar, Alexander</creatorcontrib><creatorcontrib>Amin, Mohammad H</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Smirnov, Anatoly Y</au><au>Whiticar, Alexander</au><au>Amin, Mohammad H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multilevel resonant tunneling in the presence of flux and charge noise</atitle><date>2022-09-21</date><risdate>2022</risdate><abstract>Macroscopic resonant tunneling (MRT) in flux qubits is an important
experimental tool for extracting information about noise produced by a qubit's
surroundings. Here we present a detailed derivation of the MRT signal in the
RF-SQUID flux qubit allowing for effects of flux and charge fluctuations on the
interwell and intrawell transitions in the system. Taking into consideration
transitions between the ground state in the initial well and excited states in
the target well enable us to characterize both flux and charge noise source
affecting the operation of the flux qubit. The MRT peak is formed by the
dominant noise source affecting specific transition, with flux noise
determining the lineshape of the ground to ground tunneling, whereas charge
noise reveals itself as additional broadening of the ground to excited peak.</abstract><doi>10.48550/arxiv.2209.10605</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Quantum Physics Physics - Superconductivity |
| title | Multilevel resonant tunneling in the presence of flux and charge noise |
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