two-fluid model of superconductivity
41Composite fermion — For other uses, see Fermions#Composite fermions. A composite fermion is the bound state of an electron and an even number of quantized vortices, sometimes visually pictured as the bound state of an electron and, attached, an even number of… …
42Quantum mechanics — For a generally accessible and less technical introduction to the topic, see Introduction to quantum mechanics. Quantum mechanics …
43crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …
44Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
45Alzheimer's disease clinical research — As of August 2010 there were more than 800 clinical trials under way to understand and treat Alzheimer s disease. 149 of these studies were human phase three trials, the last step before U.S. Food and Drug Administration approval and marketing.… …
46Degenerate matter — is matter that has such extraordinarily high density that the dominant contribution to its pressure is attributable to the Pauli exclusion principle.[1] The pressure maintained by a body of degenerate matter is called the degeneracy pressure, and …
47Lev Landau — Infobox Scientist name = Lev Davidovich Landau imagesize = 170px birth date = birth date|1908|1|22|mf=y birth place = Baku, Russian Empire death date = death date and age|1968|4|1|1908|1|22 death place = Moscow, Soviet Union field = Physics alma… …
48Topological order — In physics, topological order is a new kind of order (a newkind of organization of particles) in a quantum state that is beyond theLandau symmetry breaking description. It cannot be described by local order parameters and long rangecorrelations.… …
49Fusion power — The Sun is a natural fusion reactor. Fusion power is the power generated by nuclear fusion processes. In fusion reactions two light atomic nuclei fuse together to form a heavier nucleus (in contrast with fission power). In doing so they release a …
50Unsolved problems in physics — This is a list of some of the major unsolved problems in physics. Some of these problems are theoretical, meaning that existing theories seem incapable of explaining some observed phenomenon or experimental result. The others are experimental,… …
