Journal ArticleDOI
Random-Field Instability of the Ordered State of Continuous Symmetry
Yoseph Imry,Shang-keng Ma +1 more
TLDR
In this article, it was shown that when the order parameter has a continuous symmetry, the ordered state is unstable against an arbitrarily weak random field in less than four dimensions and the borderline dimensionality above which mean-field-theory results hold is six.Abstract:
Phase transitions are considered in systems where the field conjugate to the order parameter is static and random. It is demonstrated that when the order parameter has a continuous symmetry, the ordered state is unstable against an arbitrarily weak random field in less than four dimensions. The borderline dimensionality above which mean-field-theory results hold is six. (auth)read more
Citations
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Journal ArticleDOI
Analysis of stability of macromolecular clusters in dilute heteropolymer solutions
TL;DR: In this article, the formation of clusters consisting of several chains in dilute solutions of amphiphilic heteropolymers was studied by means of the Gaussian variational theory, and it was shown that in a region of the phase diagram within the conventional two-phase coexistence region mesoglobules of equal size possess the lowest free energy.
Journal ArticleDOI
On quasi twodimensional XY magnetism and superconductivity of the second kind
TL;DR: In this article, the role of interplanar fluctuations associated with parallel vortex loops is considered in the two coupled problems of XY magnetism and superconductivity of the second kind, in a quasitwodimensional situation.
Journal ArticleDOI
Cluster-Glass Phase in Pyrochlore XY Antiferromagnets with Quenched Disorder.
TL;DR: Any long-range-ordered magnetic state is destroyed beyond a critical level of randomness where the system breaks into magnetic domains due to random exchange anisotropies, becoming, therefore, a glass of spin clusters, in accordance with the available experimental data.
Journal ArticleDOI
Glass state of superfluid 3 He-A in an aerogel
Grigory Volovik,Grigory Volovik +1 more
TL;DR: In this article, the glass states formed in a superfluid 3He confined in an aerogel are discussed and the transitions between the superfluid and nonsuperfluid glass states can be triggered by small magnetic fields and by the change of the tipping angle of the magnetization in NMR experiments.
Journal ArticleDOI
Fluctuating stripes in strongly correlated electron systems and the nematic-smectic quantum phase transition
TL;DR: In this article, the quantum phase transition between a quantum nematic metallic state to an electron metallic smectic state in terms of an order-parameter theory coupled to fermionic quasiparticles is discussed.
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