![]() ![]() It's as if the atoms behave like waves, aligning in a structured manner. This state is unique because it combines the characteristics of a superfluid and a crystal, a phenomenon known as supersolidity. Imagine it as a pattern or wave-like alignment of atoms within the condensate. As a result, spin-orbit coupled B-E condensate systems can host a standing-wave stripe superfluid state, which has been argued to possess supersolid character and is described as a superfluid liquid crystal analog." Fredrickson continued, "In B-E condensates, atoms collectively minimize their energies at specific, preferred momenta. The key player in this phenomenon is the isotropic two-dimensional Rashba spin-orbit coupling, which is the interaction between the atom's spin and its motion.ĭr. Glenn Fredrickson, the principal investigator and Distinguished Professor of Chemical Engineering and Materials at UCSB, clarified, "This microemulsion phase occurs when the motion of each atom is coupled to its internal spin state, resulting in a spin-orbit coupling effect." In the spin microemulsion phase, atoms self-organize based on their internal spin states, akin to the formation of microemulsions in soft matter systems.ĭr. The stripe phase is a specific configuration of atoms within the B-E condensate where they form a striped pattern. The researchers employed advanced field-theoretic simulations (FTS) to investigate the transition of a low-temperature stripe phase with supersolid characteristics.Īs the temperature rises, this stripe phase transforms into what the researchers term a spin microemulsion. Candidate at the Department of Chemical Engineering UCSB said to, "A quantum microemulsion analog phase has been theorized to exist in two-dimensional electronic systems, where microemulsion-like correlated charge domains would appear however, it has never been observed or substantiated by numerical or experimental evidence." However, the emergence of a spin microemulsion in the realm of quantum physics has never been seen.Įthan McGarrigle, lead author and Ph.D. These phases emerge when two immiscible species (like oil and water) form enriched domains while a third minority component stabilizes their interfaces, like a surfactant. ![]() The concept of microemulsions is not new they are typically found in synthetic soft matter systems. This phase involves atoms organizing themselves into patterns based on their spin states, similar to how microemulsions form in soft matter systems. When the internal spin states of atoms in a B-E condensate are coupled to their motion, a unique phase called a spin microemulsion can emerge. A Bose-Einstein (B-E) condensate is a state of matter that occurs at extremely low temperatures, where bosons, such as photons, become indistinguishable and behave as a single quantum entity, forming a superfluid or superconducting state.ī-E condensates can exhibit unique quantum properties, such as a spin microemulsion. ![]()
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