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Hace 4 días · The transition from disorganised fluctuations to organised helical structures is a phase transition involving a change in the condensate's energy (i.e. the ground state or zero-point energy) but without any associated rise in temperature.
Hace 6 días · (Dated: May 15, 2024) We design a (2+1)D quantum spin model in which spin-1/2 ladders are coupled through anti-ferromagnetic Ising interactions. The model hosts a quantum phase transition in the (2+1)D Z2 universality class from the Haldane phase to the antiferromagnetic Ising ordered phase.
Hace 2 días · The Ising model undergoes a phase transition between an ordered and a disordered phase in 2 dimensions or more. Namely, the system is disordered for small β, whereas for large β the system exhibits ferromagnetic order: This was first proven by Rudolf Peierls in 1936, [6] using what is now called a Peierls argument .
26 de abr. de 2024 · Fig. 1: Snapshots of a phase transition in a correlated material exposed to an intense few-cycle pulse. A intense laser pulse (yellow curves) impinging on a strongly correlated material. Three...
- Eleftherios Goulielmakis
- e.goulielmakis@uni-rostock.de
13 de may. de 2024 · By employing exact diagonalization in finite-size systems, we systematically map out the ground state quantum phase diagram for two filling fractions, \nu=1/3 and 2/3, and provide a detailed characterization of each phase.
29 de abr. de 2024 · Sept. 25, 1933, Amsterdam, Neth. (aged 53) Subjects Of Study: blackbody radiation. quantum. Paul Ehrenfest (born Jan. 18, 1880, Vienna, Austria—died Sept. 25, 1933, Amsterdam, Neth.) was an Austrian theoretical physicist who helped clarify the foundations of quantum theory and statistical mechanics.
Hace 5 días · It is found that the phase transition along the radial direction is almost 3 times faster than that in the tangential direction (1.07 vs 0.39 μm/min). Moreover, the effect of the crystallization temperature and subsequent annealing temperature on the phase-transition behavior has been explored.
