<\/p>\n\n\n\n <\/a><\/p>\n\n\n\n a<\/strong> Schematic of the experimental circuit. A microwave mode at frequency \u03c9<\/em>\u2009\u2248\u20092\u03c0<\/em>\u2009\u00d7\u20096\u2009GHz, here represented by an LC<\/em> resonator, is coupled to a superconducting tunnel junction with tunnel resistance R<\/em>T<\/em><\/sub>. The characteristic impedance Z<\/em>c<\/em><\/sub> of the mode is 4.5\u2009k\u03a9, much larger than in a conventional superconducting resonator. A bias tee and a circulator are used to dc bias the sample while measuring the reflected microwave signal. b<\/strong> When the bias voltage is such that 2\u0394\u2009\u2212\u2009eV<\/em>\u2009>\u2009l\u210f\u03c9<\/em>, the tunneling of quasiparticles through the junction is allowed only if at least l<\/em> photons (here two) are absorbed from the mode to provide the missing energy. c<\/strong> Microscope image of the sample realizing the circuit shown in a<\/strong>. The resonator consists of two grAl quarter wave resonators (red) connected by a wider Al wire (white). The tunnel junction (Al\/AlOx<\/em><\/sub>\/Al) connects the resonator right end to the ground. The junction area is 150\u2009\u00d7\u2009150\u2009nm2<\/sup>, leading to a tunnel resistance R<\/em>T<\/em><\/sub>\u2009=\u2009150\u2009k\u03a9 far above the gap. A microstrip Al line connects the resonator\u2019s left end to the measurement circuit. All experiments are performed in a dilution fridge with a base temperature of 10\u2009mK.<\/p>\n\n\n\n Reference<\/strong> Contact<\/strong> <\/p>\n","protected":false},"excerpt":{"rendered":" In microwave quantum optics, dissipation usually corresponds to quantum jumps, where photons are lost one by one. Here we demonstrate a new approach to dissipation engineering. By coupling a high …<\/p>\n","protected":false},"author":77,"featured_media":3831,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/posts\/3823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/users\/77"}],"replies":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/comments?post=3823"}],"version-history":[{"count":5,"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/posts\/3823\/revisions"}],"predecessor-version":[{"id":3830,"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/posts\/3823\/revisions\/3830"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/media\/3831"}],"wp:attachment":[{"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/media?parent=3823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/categories?post=3823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/equipes.lps.u-psud.fr\/ns2\/wp-json\/wp\/v2\/tags?post=3823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"figure](\"https:\/\/media.springernature.com\/lw685\/springer-static\/image\/art%3A10.1038%2Fs41467-022-34762-z\/MediaObjects\/41467_2022_34762_Fig1_HTML.png\")
<\/figure>\n\n\n\n
Quantum bath engineering of a high impedance microwave mode through quasiparticle tunneling<\/em>
G. Aiello, M. F\u00e9chant, A. Morvan, J. Basset, M. Aprili, J. Gabelli and J.Est\u00e8ve
Nature Communications, 2022, 13, 7146
doi: 10.1038\/s42005-023-01149-5<\/a><\/p>\n\n\n\n
J\u00e9r\u00f4me Est\u00e8ve<\/p>\n\n\n\n