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B Phase Nucleation And A B Interface Dynamics In Superfluid Helium 3
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Book Synopsis B Phase Nucleation and A-B Interface Dynamics in Superfluid Helium-3 by : John Peter Palmeri
Download or read book B Phase Nucleation and A-B Interface Dynamics in Superfluid Helium-3 written by John Peter Palmeri and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with the theory of the primary nucleation and subsequent expansion of the superfluid $sp3$He-B phase in the metastable, hypercooled A phase. An overview of the theory of dynamical phenomena in Fermi superfluids is presented in Chapter 1 with an eye towards formulating a theory suitable for studying the dynamics of the first order A-B phase transition. The mechanism for the primary B phase nucleation in the metastable A is not at all understood, and in Chapter 2 various possibilities are discussed, although no resolution to the problem is reached. The focus here is on an exotic non-equilibrium, cosmic ray, which involves non-hydrodynamic heat transport in a state far from equilibrium. Chapter 3 deals with some idealized, model transport problems inspired by the physics behind the cosmic-ray mechanism, and it is shown that certain non-hydrodynamic dynamical structures similar to the ones needed in the cosmic-ray mechanism can form in these model problems. An application of superfluid kinetic equations to the nonlinear, dissipative motion of the A-B interface is discussed in Chapter 4; in particular, the mobility of the phase boundary is obtained in several different dynamical regimes (depending on temperature and pressure), including the (currently) experimentally relevant ballistic regime where the Andreev scattering of normal excitations off the moving interface strongly influences the dynamics. The theoretical prediction for the terminal velocity is too big by a factor $sim$2, and possible reasons for this discrepancy are discussed. A study of the stability and vibrations of the interface is presented in Chapter 5, where we argue that (1) the moving planar interface is linearly stable and (2) it should be possible to observe underdamped vibrations of a pinned interface at low temperatures. Finally, in Chapter 6 we point out other possible applications of the dynamical theory formulated here and list some open problems.
Book Synopsis B Phase Nucleation and A-B Interface Dynamics in Superfluid 3He by : John Peter Palmeri
Download or read book B Phase Nucleation and A-B Interface Dynamics in Superfluid 3He written by John Peter Palmeri and published by . This book was released on 1989 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Helium Three written by L. P. Pitaevskii and published by Elsevier. This book was released on 2012-12-02 with total page 995 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing the subject of superfluid helium three and polarized liquid helium three, this book is devoted to modern problems in many body physics specific to the quantum fluid helium three. Relationships between properties of helium three and topics in other fields are established including superconductivity, non-linear dynamics, acoustics, and magnetically polarized quantum systems. Among the chapters in this collection one finds valuable reference material and original research not published elsewhere. Advanced research topics are presented in a pedagogical manner, in considerable depth, and with appropriate introductory material sufficiently general to be suitable to the non-specialist.
Book Synopsis Exotic Properties Of Superfluid Helium 3 by : Grigori Volovik
Download or read book Exotic Properties Of Superfluid Helium 3 written by Grigori Volovik and published by World Scientific. This book was released on 1992-03-31 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the unique properties of superfluid phases of 3He, the condensed matter with the outmost broken symmetry, which combine in a surprising way the properties of ordered magnets, liquid crystals and superfluids. The complicated vacuum state of these phases with a large number of fermionic and bosonic quasiparticles and topological objects remains the vacuum in modern quantum field theories. Some of the objects and physical phenomena in 3He have strong analogy with the neutrino, W-bosons, weak interactions, gravity, chiral anomaly, Quantum Hall Effect and fractional statistics. As an example of topological objects, the quantized vortices in 3He phases are discussed in detail, including singular and continuous vortices, half-quantum vortices, broken symmetry in the vortex core and phase transitions between the vortex states with different symmetry and topology.
Book Synopsis The Universe in a Helium Droplet by : G. E. Volovik
Download or read book The Universe in a Helium Droplet written by G. E. Volovik and published by Oxford University Press on Demand. This book was released on 2003-03-06 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents a general overview of analogies between phenomena in condensed matter physics and quantum field theory and elementary particle physics.
Download or read book Soviet Physics, JETP. written by and published by . This book was released on 1987 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Superfluid Phases of Helium 3 by : Dieter Vollhardt
Download or read book The Superfluid Phases of Helium 3 written by Dieter Vollhardt and published by Courier Corporation. This book was released on 2013-10-17 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic of modern theoretical physics is the first and only comprehensive treatment of the superfluid phases of helium 3, a crucial aspect of condensed matter physics with applications to many other fields. The self-contained approach explores ideas, concepts, and theoretical results, emphasizing symmetries and the consequences of their spontaneous breakdown. 1990 edition.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleation of Vortices at the A-b Phase Boundary in Superfluid 3he by : V. V. Dmitriev
Download or read book Nucleation of Vortices at the A-b Phase Boundary in Superfluid 3he written by V. V. Dmitriev and published by . This book was released on 1991 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleation and Growth of 3He-B in 3He-A. by :
Download or read book Nucleation and Growth of 3He-B in 3He-A. written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The 3He A .-->. B transition is remarkable for a number of reasons. Because of the small bulk free energy difference between the two phases, the probability of homogeneous thermal nucleation of the B phase is vanishingly small. Thus the experimental fact that the B phase nucleates readily from the A phase is not understood. The A .-->. B transition is also remarkable in that when it occurs after cooling from above the critical temperature, it occurs in an extreme state of supercooling known as hypercooling. In this situation, the velocity of propagation of the A-B phase interface is controlled by microscopic phenomena rather than by thermal diffusion. We briefly review our recent work on both these topics, including the velocity of propagation of the A-B interface through hypercooled 3He-A, a search for cosmic-ray-induced B-phase nucleation, and preliminary observations of B-phase nucleation locations and temperatures. 15 refs.
Book Synopsis Proceedings of the 20th International Conference on Low Temperature Physics, LT-20 by : International Union of Pure and Applied Physics
Download or read book Proceedings of the 20th International Conference on Low Temperature Physics, LT-20 written by International Union of Pure and Applied Physics and published by . This book was released on 1994 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Guillaume Gervais Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages : pages Book Rating :4.:/5 (517 download)
Book Synopsis The Superfluid Phases of 3He in Aerogel [microform] by : Guillaume Gervais
Download or read book The Superfluid Phases of 3He in Aerogel [microform] written by Guillaume Gervais and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis encompasses a broad study of the properties of the 'dirty' Fermi liquid and superfluid state of 3He in aerogel. The sound attenuation in the first and zero sound regime was determined with longitudinal acoustics, and the transition between the two is found to be completely obscured in aerogel by strong elastic scattering. The (P,T,B) phase diagram of the superfluid phases of 3He in 98% aerogel was determined in the range of pressure from 15 to 33 bars and up to 3 kG using high-frequency sound. The first-order transition between the A and B-phases is suppressed by a magnetic field. We show that the equilibrium phase in zero applied field is the B-phase with at most a region of A-phase ∼20 muK just below Tca at a pressure of 33.4 bars. The quadratic coefficient for magnetic field suppression of the AB-transition, ga(beta), was obtained. The pressure dependence of ga(beta) is markedly different from that for the pure superfluid, g0(beta), which diverges at a polycritical pressure (PCP) of 21 bars. We compare our results with calculations from the homogeneous scattering model for ga(beta), and find qualitatively good agreement with the experiment if the strong-coupling corrections are rescaled from known values of the beta's for pure 3He. The calculations show that the PCP in the aerogel is displaced above melting pressure and out of experimental reach for a mean free path of ∼150 nm. The nucleation of the aerogel B-phase is also studied. Primary supercooling is observed over a wide range of pressures and fields, but secondary nucleation shows no memory effect. At the interface between the pure and dirty superfluids, we find that the proximity effect is insufficient to nucleate the B-phase in either superfluid. We suggest an explanation in terms of decoherence of the order parameter on the length scale of the critical radius for nucleation.
Book Synopsis Quasiparticle Dynamics at the Superfluid "3He A-B Interface by : Elliot J. Fullwood
Download or read book Quasiparticle Dynamics at the Superfluid "3He A-B Interface written by Elliot J. Fullwood and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1995 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structures and Dynamics of Interfacial Water by : Fujie Tang
Download or read book Structures and Dynamics of Interfacial Water written by Fujie Tang and published by Springer. This book was released on 2019-06-20 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the study of the interfacial water using molecular dynamics simulation and experimental sum frequency generation spectroscopy. It proposes a new definition of the free O-H groups at water-air interface and presents research on the structure and dynamics of these groups. Furthermore, it discusses the exponential decay nature of the orientation distribution of the free O-H groups of interfacial water and ascribes the origin of the down pointing free O-H groups to the presence of capillary waves on the surface. It also describes how, based on this new definition, a maximum surface H-bond density of around 200 K at ice surface was found, as the maximum results from two competing effects. Lastly, the book discusses the absorption of water molecules at the water–TiO2 interface. Providing insights into the combination of molecular dynamics simulation and experimental sum frequency generation spectroscopy, it is a valuable resource for researchers in the field.
Book Synopsis A Phase Transition of the Moving Superfluid [sup 3]He A - B Interface by : Martti Salomaa
Download or read book A Phase Transition of the Moving Superfluid [sup 3]He A - B Interface written by Martti Salomaa and published by . This book was released on 1987 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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