Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Hathcock, David"'
Autor:
Hathcock, David, Sethna, James P.
Universal scaling laws only apply asymptotically near critical phase transitions. We propose a general scheme, based on normal form theory of renormalization group flows, for incorporating corrections to scaling that quantitatively describe the entir
Externí odkaz:
http://arxiv.org/abs/2402.18531
The Escherichia coli chemoreceptors form an extensive array that achieves cooperative and adaptive sensing of extracellular signals. The receptors control the activity of histidine kinase CheA, which drives a nonequilibrium phosphorylation-dephosphor
Externí odkaz:
http://arxiv.org/abs/2312.17424
Stochastic dynamics of granular hopper flows: a configurational mode controls the stability of clogs
Granular flows in small-outlet hoppers exhibit several characteristic but poorly understood behaviors: temporary clogs (pauses) that last for an extended period before flow spontaneously restarts, permanent clogs that last indefinitely, and non-Gauss
Externí odkaz:
http://arxiv.org/abs/2312.01194
Our community has a deep and sophisticated understanding of phase transitions and their universal scaling functions. We outline and advocate an ambitious program to use this understanding as an anchor for describing the surrounding phases. We explain
Externí odkaz:
http://arxiv.org/abs/2304.00105
Autor:
Hathcock, David, Yu, Qiwei, Mello, Bernardo A., Amin, Divya N., Hazelbauer, Gerald L., Tu, Yuhai
Publikováno v:
Proc. Natl. Acad. Sci. U.S.A. 120, e2303115120 (2023)
The Escherichia coli chemotaxis signaling pathway has served as a model system for studying the adaptive sensing of environmental signals by large protein complexes. The chemoreceptors control the kinase activity of CheA in response to the extracellu
Externí odkaz:
http://arxiv.org/abs/2302.11770
Autor:
Yang, Teaya, Hathcock, David, Chen, Yuchao, McEuen, Paul, Sethna, James P., Cohen, Itai, Griniasty, Itay
We propose a novel design paradigm for multistate machines where transitions from one state to another are organized by bifurcations of multiple equilibria of the energy landscape describing the collective interactions of the machine components. This
Externí odkaz:
http://arxiv.org/abs/2301.01507
Autor:
Hathcock, David Jackson
Using a variety of techniques including femtosecond transient absorption spectroscopy, optical absorption, atomic force microscopy, the hot electron cooling dynamics of lithographically prepared gold nanoarrays, the effect of the surrounding environm
Externí odkaz:
http://hdl.handle.net/1853/5134
Autor:
Hathcock, David, Strogatz, Steven H.
We characterize absorption-time distributions for birth-death Markov chains with an absorbing boundary. For "extinction-prone" chains (which drift on average toward the absorbing state) the asymptotic distribution is Gaussian, Gumbel, or belongs to a
Externí odkaz:
http://arxiv.org/abs/2103.08522
Autor:
Hathcock, David, Sethna, James P.
Publikováno v:
Phys. Rev. Research 3, 013156 (2021)
Barrier crossing calculations in chemical reaction-rate theory typically assume that the barrier is large compared to the temperature. When the barrier vanishes, however, there is a qualitative change in behavior. Instead of crossing a barrier, parti
Externí odkaz:
http://arxiv.org/abs/1902.07382
Autor:
Hathcock, David, Strogatz, Steven H.
Publikováno v:
Phys. Rev. E 100, 012408 (2019)
Evolutionary graph theory models the effects of natural selection and random drift on structured populations of competing mutant and non-mutant individuals. Recent studies have found that fixation times in such systems often have right-skewed distrib
Externí odkaz:
http://arxiv.org/abs/1812.05652