{"id":1649,"date":"2020-02-25T15:32:16","date_gmt":"2020-02-25T06:32:16","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?post_type=seminar&p=1649"},"modified":"2021-07-13T14:50:23","modified_gmt":"2021-07-13T05:50:23","slug":"canceled-a-phenomenological-approach-to-interacting-vacuum-in-cosmologya-progress-report","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1649\/","title":{"rendered":"Canceled – A phenomenological approach to interacting vacuum in cosmology:a progress report"},"content":{"rendered":"

*This KMI Theory Seminar is canceled*<\/span><\/p>\n

 <\/p>\n

Speaker :\u00a0 \u00a0Marco Bruni ( University of Portsmouth )<\/span><\/p>\n

Title :\u00a0 \u00a0A phenomenological approach to interacting vacuum in cosmology:a progress report<\/span><\/p>\n

Abstract :\u00a0 \u00a0<\/span>
\nIn this talk I will first describe a specific class of models for the<\/span>
\ninteraction of dark matter and dark energy. The dark energy component is a<\/span>
\nw=-1 fluid representing vacuum, but due to the interaction with dark matter<\/span>
\nthis doesn’t correspond to a cosmological constant, i.e. it evolves in<\/span>
\nspace and time, modifying the background and the perturbations.<\/span>
\nNonetheless, for a specific subclass of\u00a0 interactions the dark matter is<\/span>
\ngeodesics, as in LCDM.\u00a0 Rather than focusing on a specific model, in the<\/span>
\nsecond part of the talk I will descrive recent work where we try to<\/span>
\nreconstruct the evolution in time of the\u00a0 interaction using current<\/span>
\ncosmological data, drawing some conclusions.<\/span><\/p>\n

Time :\u00a0 \u00a015:00 – 16:00, March 10th (Tue.)<\/span><\/p>\n

Place :\u00a0 \u00a0ES635<\/span><\/p>\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[53],"acf":{"s_now_accepting":true,"s_date_order":"2020-03-10 15:00:00","s_date_end":null,"s_date_text":"Tuesday, March 10, 2020","s_text":"Marco Bruni ( University of Portsmouth )","s_place":"ES635","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"","s_slide":""},"yoast_head":"\nCanceled - A phenomenological approach to interacting vacuum in cosmology:a progress report - KMI - Nagoya University<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1649\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Canceled - A phenomenological approach to interacting vacuum in cosmology:a progress report - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"*This KMI Theory Seminar is canceled*   Speaker :\u00a0 \u00a0Marco Bruni ( University of Portsmouth ) Title :\u00a0 \u00a0A phenomenological approach to interacting vacuum in cosmology:a progress report Abstract :\u00a0 \u00a0 In this talk I will first describe a specific class of models for the interaction of dark matter and dark energy. 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