Necklace model of randomly charged polymers
نویسندگان
چکیده
منابع مشابه
Randomly Charged Polymers: Excess Charge Dependence of Spatial Configurations
Spatial configurations of randomly charged polymers, known as polyampholytes (PAs), are very sensitive to the overall excess charge Q. Analytical arguments, supported by Monte Carlo simulations and exact enumeration studies, lead to the following picture: For Q < Qc ≈ q0 √ N (q0 is the elementary charge, N is the number of monomers in the polymer), the radius of gyration Rg of the polymer decre...
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Motivated by an investigation of ground state properties of randomly charged polymers, we discuss the size distribution of the largest Q–segments (segments with total charge Q) in such N–mers. Upon mapping the charge sequence to one–dimensional random walks (RWs), this corresponds to finding the probability for the largest segment with total displacement Q in an N–step RW to have length L. Usin...
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We consider a Laplace operator on a random graph consisting of infinitely many loops joined symmetrically by intervals of unit length. The arc lengths of the loops are considered to be independent, identically distributed random variables. The integrated density of states of this Laplace operator is shown to have discontinuities provided that the distribution of arc lengths of the loops has a n...
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 1998
ISSN: 0378-4371
DOI: 10.1016/s0378-4371(97)00478-0