2009/09/14 by L. B. Ioffe, Lev Ioffe, Marc Mézard +1 · 3 citations
Physics and Astronomy · #Condensed matter physics #Ferromagnetism #Magnet #Phase (matter) #Phase diagram #Phase transition #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum critical point #Quantum many-body systems #Quantum mechanics #Quantum phase transition #Quantum phases #Superconductivity #Theoretical and Computational Physics #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.105.037001
published as Phys. Rev. Lett. 105, 037001 (2010) · 4 pages, 1 figure
arxiv created 2009/09/14 · openalex publication_date 2010/07/14 · arxiv updated 2015/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We develop an analytical theory, based on the quantum cavity method, describing the quantum phase transitions in low-temperature, strongly disordered ferromagnets and superconductors. At variance with the usual quantum critical points, we find a phase diagram with two critical points separating three phases. When the disorder increases, the systems goes from the ordered phase to an intermediate disordered phase characterized by activated transport and then to a second disordered phase where no transport is possible. Both the ordered and disordered phases exhibit strong inhomogeneity of their basic properties typical of glassy physics.