Is there a closed string tachyon vacuum ?

(). Is there a closed string tachyon vacuum ?. SciVideos. https://scivideos.org/index.php/strings-conferences/20051010

Is there a closed string tachyon vacuum ?. SciVideos, , https://scivideos.org/index.php/strings-conferences/20051010 

          @misc{ scivideos_strings:20051010,
            doi = {},
            url = {https://scivideos.org/index.php/strings-conferences/20051010},
            author = {},
            keywords = {},
            language = {en},
            title = {Is there a closed string tachyon vacuum ?},
            publisher = {},
            year = {},
            month = {},
            note = {strings:20051010 see, \url{https://scivideos.org/index.php/strings-conferences/20051010}}
          }
Barton Zwiebach (MIT)
Source Repository Strings Conferences
Collection