Momentum fractionation on superstrata
Superstrata are bound states in string theory that carry D1, D5, and momentum charges, and whose supergravity descriptions are parameterized by arbitrary functions of (at least) two variables. In the D1D5 CFT, typical threecharge states reside in highdegree twisted sectors, and their momentum charge is carried by modes that individually have fractional momentum. Understanding this momentum fractionation holographically is crucial for understanding typical blackhole microstates in this system. We use solutiongenerating techniques to add momentum to a multiwound supertube and thereby construct the first examples of asymptoticallyflat superstrata. The resulting supergravity solutions are horizonless and smooth up to wellunderstood orbifold singularities. Upon taking the AdS3 decoupling limit, our solutions are dual to CFT states with momentum fractionation. We give a precise proposal for these dual CFT states. Lastly, our construction establishes the very nontrivial fact that large classes of CFT states with momentum fractionation can be realized in the bulk as smooth horizonless supergravity solutions.
 Authors:

^{[1]};
^{[2]};
^{[1]};
^{[3]}
 Univ. Paris Saclay, CEA, CNRS, Gif sur Yvette (France)
 Univ. of Chicago, Chicago, IL (United States)
 Univ. of Southern California, Los Angeles, CA (United States)
 Publication Date:
 Grant/Contract Number:
 SC0009924; SC0011687
 Type:
 Accepted Manuscript
 Journal Name:
 Journal of High Energy Physics (Online)
 Additional Journal Information:
 Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 5; Journal ID: ISSN 10298479
 Publisher:
 Springer Berlin
 Research Org:
 Univ. of Chicago, IL (United States); Univ. of Southern California, Los Angeles, CA (United States)
 Sponsoring Org:
 USDOE
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTRONOMY AND ASTROPHYSICS; Black Holes in String Theory; AdSCFT Correspondence
 OSTI Identifier:
 1326975
Bena, Iosif, Martinec, Emil, Turton, David, and Warner, Nicholas P. Momentum fractionation on superstrata. United States: N. p.,
Web. doi:10.1007/JHEP05(2016)064.
Bena, Iosif, Martinec, Emil, Turton, David, & Warner, Nicholas P. Momentum fractionation on superstrata. United States. doi:10.1007/JHEP05(2016)064.
Bena, Iosif, Martinec, Emil, Turton, David, and Warner, Nicholas P. 2016.
"Momentum fractionation on superstrata". United States.
doi:10.1007/JHEP05(2016)064. https://www.osti.gov/servlets/purl/1326975.
@article{osti_1326975,
title = {Momentum fractionation on superstrata},
author = {Bena, Iosif and Martinec, Emil and Turton, David and Warner, Nicholas P.},
abstractNote = {Superstrata are bound states in string theory that carry D1, D5, and momentum charges, and whose supergravity descriptions are parameterized by arbitrary functions of (at least) two variables. In the D1D5 CFT, typical threecharge states reside in highdegree twisted sectors, and their momentum charge is carried by modes that individually have fractional momentum. Understanding this momentum fractionation holographically is crucial for understanding typical blackhole microstates in this system. We use solutiongenerating techniques to add momentum to a multiwound supertube and thereby construct the first examples of asymptoticallyflat superstrata. The resulting supergravity solutions are horizonless and smooth up to wellunderstood orbifold singularities. Upon taking the AdS3 decoupling limit, our solutions are dual to CFT states with momentum fractionation. We give a precise proposal for these dual CFT states. Lastly, our construction establishes the very nontrivial fact that large classes of CFT states with momentum fractionation can be realized in the bulk as smooth horizonless supergravity solutions.},
doi = {10.1007/JHEP05(2016)064},
journal = {Journal of High Energy Physics (Online)},
number = 5,
volume = 2016,
place = {United States},
year = {2016},
month = {5}
}