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A helium-3 atom is a fermion particle; it can form bosons only by pairing with another particle like itself, which occurs at much lower temperatures. The discovery of superfluidity in helium-3 was the basis for the award of the 1996 Nobel Prize in Physics. [1] This process is similar to the electron pairing in superconductivity.
Fermionic condensates are attained at lower temperatures than Bose–Einstein condensates. Fermionic condensates are a type of superfluid.As the name suggests, a superfluid possesses fluid properties similar to those possessed by ordinary liquids and gases, such as the lack of a definite shape and the ability to flow in response to applied forces.
Although superfluid helium-3 only exists within a few thousandths of a degree of absolute zero, boojums have also been observed forming in various liquid crystals, [1] which exist at a far broader range of temperatures. The boojum was named by N. David Mermin of Cornell University in 1976. He was inspired by Lewis Carroll's poem The Hunting of ...
Superfluid helium. Superfluid is the state of matter that exhibits frictionless flow, zero viscosity, also known as inviscid flow. [4] To date, helium is the only fluid to exhibit superfluidity that has been discovered. Helium-4 becomes a superfluid once it is cooled to below 2.2K, a point known as the lambda point. [13]
A supersolid is a special quantum state of matter where particles form a rigid, spatially ordered structure, but also flow with zero viscosity.This is in contradiction to the intuition that flow, and in particular superfluid flow with zero viscosity, is a property exclusive to the fluid state, e.g., superconducting electron and neutron fluids, gases with Bose–Einstein condensates, or ...
A quatrain is any four-line stanza or poem. There are 15 possible rhyme sequences for a four-line poem; common rhyme schemes for these include AAAA, AABB, ABAB, ABBA, and ABCB. [citation needed] "The Raven" stanza: ABCBBB, or AA,B,CC,CB,B,B when accounting for internal rhyme, as used by Edgar Allan Poe in his poem "The Raven" Rhyme royal: ABABBCC
The superfluid is characterized by long-range phase coherence, a spontaneous breaking of the Hamiltonian's continuous () symmetry, a non-zero compressibility and superfluid susceptibility. At non-zero temperature, in certain parameter regimes a regular fluid phase appears that does not break the U ( 1 ) {\displaystyle U(1)} symmetry and does ...
Poetic Diction is a style of writing in poetry which encompasses vocabulary, phrasing, and grammatical usage. Along with syntax, poetic diction functions in the setting the tone, mood, and atmosphere of a poem to convey the poet's intention. Poetic devices shape a poem and its meanings.