Zobrazeno 1 - 10
of 7 549
pro vyhledávání: '"Burns, A. J."'
Autor:
Allton, Chris, Aarts, Gert, Anwar, M. Naeem, Bignell, Ryan, Burns, Timothy J., García-Mascaraque, Sergio Chaves, Hands, Simon, Jäger, Benjamin, Kim, Seyong, Lombardo, Maria Paola, Page, Benjamin, Ryan, Sínead, Skullerud, Jon-Ivar, Smecca, Antonio, Spriggs, Thomas
The FASTSUM Collaboration has developed a comprehensive research programme in thermal lattice QCD using 2+1 flavour ensembles. We review our recent hadron spectrum analyses of open charm mesons and charm baryons at non-zero temperature. We also detai
Externí odkaz:
http://arxiv.org/abs/2411.15937
The susceptibility of timestepping algorithms to numerical instabilities is an important consideration when simulating partial differential equations (PDEs). Here we identify and analyze a pernicious numerical instability arising in pseudospectral si
Externí odkaz:
http://arxiv.org/abs/2411.07286
Autor:
Vasil, Geoffrey M., Burns, Keaton J., Lecoanet, Daniel, Oishi, Jeffrey S., Brown, Benjamin P., Julien, Keith
In the rapidly rotating limit, we derive a balanced set of reduced equations governing the strongly nonlinear development of the convective wall-mode instability in the interior of a general container. The model illustrates that wall-mode convection
Externí odkaz:
http://arxiv.org/abs/2409.20541
Autor:
Vasil, Geoffrey M, Lecoanet, Daniel, Augustson, Kyle, Burns, Keaton J, Oishi, Jeffrey S, Brown, Benjamin P, Brummell, Nicholas, Julien, Keith
The Sun's magnetic dynamo cycle features a distinct pattern: a propagating region of sunspot emergence appears around 30 degrees latitude and vanishes near the equator every 11 years. Moreover, longitudinal flows called "torsional oscillations" close
Externí odkaz:
http://arxiv.org/abs/2404.07740
Autor:
O'Connor, Liam, Lecoanet, Daniel, Anders, Evan H., Augustson, Kyle C., Burns, Keaton J., Vasil, Geoffrey M., Oishi, Jeffrey S., Brown, Benjamin P.
Even when the partial differential equation underlying a physical process can be evolved forward in time, the retrospective (backward in time) inverse problem often has its own challenges and applications. Direct Adjoint Looping (DAL) is the defacto
Externí odkaz:
http://arxiv.org/abs/2403.00937
Autor:
Bignell, Ryan, Aarts, Gert, Allton, Chris, Anwar, M. Naeem, Burns, Timothy J., Jäger, Benjamin, Skullerud, Jon-Ivar
Reconstructed-correlator methods have been used to investigate thermal effects in mesonic correlation functions in a fit-independent manner. This technique has recently been extended to the baryonic sector. In this work different ways of implementing
Externí odkaz:
http://arxiv.org/abs/2312.03560
Solids when rapidly and elastically stressed change temperature, the effect proposed by Lord Kelvin is adiabatic thermo-elastic cooling or heating depending on the sign of the stress. A fast sensitive IR camera has measured temperature both decreasin
Externí odkaz:
http://arxiv.org/abs/2311.06371
We present new linear relations among the masses of S-wave tetraquarks with either one flavour ($qq \bar q \bar q$) or two ($QQ\bar q \bar q$). Because the relations are sensitive to the hidden-colour, spin, and spatial degrees of freedom, comparison
Externí odkaz:
http://arxiv.org/abs/2309.03309
Autor:
Aarts, Gert, Allton, Chris, Anwar, M. Naeem, Bignell, Ryan, Burns, Timothy J., Jäger, Benjamin, Skullerud, Jon-Ivar
Publikováno v:
Eur. Phys. J. A 60, 59 (2024)
We study the behaviour of spin $1/2$ charmed baryons as the temperature increases. We make use of anisotropic lattice QCD simulations with $N_f = 2 + 1$ dynamical flavours. After determining the positive and negative parity ground state masses at the
Externí odkaz:
http://arxiv.org/abs/2308.12207
Autor:
Anders, Evan H., Lecoanet, Daniel, Cantiello, Matteo, Burns, Keaton J., Hyatt, Benjamin A., Kaufman, Emma, Townsend, Richard H. D., Brown, Benjamin P., Vasil, Geoffrey M., Oishi, Jeffrey S., Jermyn, Adam S.
Publikováno v:
Nature Astronomy, 2023, 10.1038/s41550-023-02040-7
Massive stars die in catastrophic explosions, which seed the interstellar medium with heavy elements and produce neutron stars and black holes. Predictions of the explosion's character and the remnant mass depend on models of the star's evolutionary
Externí odkaz:
http://arxiv.org/abs/2306.08023