The protein dynamical transition is a pseudogap changeover

نویسندگان

  • Andrey Krokhotin
  • Antti J. Niemi
چکیده

The emergence of biochemical activities in a protein seem to commence with the onset of atomic mean-square displacements along the protein lattice. The ensuing protein dynamical transition has been discussed extensively in the literature, and often with conflicting conclusions. Here we clarify the phenomenon by establishing a deep connection between the dynamical transition and the pseudogap state where high-temperature superconductivity comes to its end. For this we first show how to endow proteins with an order parameter akin the quasiparticle wave function in superconductors. We then present universality arguments to claim that the protein dynamical transition takes place in tandem with a pseudogap transmutation. We confirm that available experimental data fully supports our proposal.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Pseudogap temperature as a Widom line in doped Mott insulators

The pseudogap refers to an enigmatic state of matter with unusual physical properties found below a characteristic temperature T* in hole-doped high-temperature superconductors. Determining T* is critical for understanding this state. Here we study the simplest model of correlated electron systems, the Hubbard model, with cluster dynamical mean-field theory to find out whether the pseudogap can...

متن کامل

Strong coupling superconductivity, pseudogap, and Mott transition.

An intricate interplay between superconductivity, pseudogap, and Mott transition, either bandwidth driven or doping driven, occurs in materials. Layered organic conductors and cuprates offer two prime examples. We provide a unified perspective of this interplay in the two-dimensional Hubbard model within cellular dynamical mean-field theory on a 2×2 plaquette and using the continuous-time quant...

متن کامل

Pseudogap Effects in Heavy Fermions Close to a Quantum Phase Transition

Neutron-scattering experiments on heavy fermions close to a magnetic quantum critical point are suggestive of an anomalous local dynamical spin susceptibility. The possibility that this anomaly arises due to a single-particle pseudogap is explored through a study of the Kondo model with a power-law density of states, a problem which exhibits a zero-temperature phase transition at a finite Kondo...

متن کامل

Dynamical Structural Instabilities in La1.9Sro.l CU04 Under Intense Laser Photoexcitation

The femtosecond timescale photoinduced reflec tivity response in La 1.9 SrO.1 CU04 under intense laser photoexcitation is reported as a function of intensity and temperature. We observe saturation of the response, which corresponds to the destruction of both superconducting gap and the pseudogap. We fin that the saturation thresholds scale approximately as .12, where .1 = .1s for the supercondu...

متن کامل

The Exact Solution of Min-Time Optimal Control Problem in Constrained LTI Systems: A State Transition Matrix Approach

In this paper, the min-time optimal control problem is mainly investigated in the linear time invariant (LTI) continuous-time control system with a constrained input. A high order dynamical LTI system is firstly considered for this purpose. Then the Pontryagin principle and some necessary optimality conditions have been simultaneously used to solve the optimal control problem. These optimality ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011