Chin. Phys. B
... systems the two coupled degrees of freedom at each lattice site must be included, but this complicates also their investigation. Even when a continuum limit is taken, the equations of motion couple two fields so that they are difficult to solve in the above models. For instance, no exact analytical ...
... systems the two coupled degrees of freedom at each lattice site must be included, but this complicates also their investigation. Even when a continuum limit is taken, the equations of motion couple two fields so that they are difficult to solve in the above models. For instance, no exact analytical ...
Wu-yen Chuang Curriculum Vitae
... • B.S. in Physics, National Tsing-Hua University, Taiwan, first place upon graduation, 1998 • Military Service, Second Lieutenant in Armored Troops, 1999–2001 [Research Interests] • My research focuses on mathematical physics, string theory, and mathematics inspired by string theory. I have worked o ...
... • B.S. in Physics, National Tsing-Hua University, Taiwan, first place upon graduation, 1998 • Military Service, Second Lieutenant in Armored Troops, 1999–2001 [Research Interests] • My research focuses on mathematical physics, string theory, and mathematics inspired by string theory. I have worked o ...
98, 010506 (2007)
... To see what happens to the zero-energy state in the strong-pairing phase, this phase can be most simply accessed, in the spirit of Ref. [5], by continuing to use the weak-coupling mean-field BCS theory even in the presence of strong attractive coupling and taking < 0. Even in this heuristic spirit ...
... To see what happens to the zero-energy state in the strong-pairing phase, this phase can be most simply accessed, in the spirit of Ref. [5], by continuing to use the weak-coupling mean-field BCS theory even in the presence of strong attractive coupling and taking < 0. Even in this heuristic spirit ...
Slides
... motion of the Cooper pairs makes the order parameter more complicated. But turbulence in 3He-B (but not in 3He-A) turns out to be quite similar to that in 4He, although • The coherence length is larger and the vortex core has a more complicated structure, providing another path to dissipation. • The ...
... motion of the Cooper pairs makes the order parameter more complicated. But turbulence in 3He-B (but not in 3He-A) turns out to be quite similar to that in 4He, although • The coherence length is larger and the vortex core has a more complicated structure, providing another path to dissipation. • The ...
... Abstract A Schrödinger type equation for a mathematical probability amplitude (x, t) is derived from the generalized phase space Liouville equation valid for the motion of a microscopic particle, with mass M and charge e, moving in a potential V (x). The particle phase space probability density is ...
A phase-space study of the quantum Loschmidt Echo in the
... introduced in order to study the (in)-stability of the quantum dynamics under perturbations of the Hamiltonian. It has been extensively studied in the past few years in the physics literature, in connection with the problems of “quantum chaos”, quantum computation and decoherence. In this paper, we ...
... introduced in order to study the (in)-stability of the quantum dynamics under perturbations of the Hamiltonian. It has been extensively studied in the past few years in the physics literature, in connection with the problems of “quantum chaos”, quantum computation and decoherence. In this paper, we ...
PPT - Fernando Brandao
... For topologically trivial systems (AKLT, Heisenberg models): entanglement spectrum matches the energies of a local Hamiltonian on boundary For topological systems (Toric code): needs non-local Hamiltonian ...
... For topologically trivial systems (AKLT, Heisenberg models): entanglement spectrum matches the energies of a local Hamiltonian on boundary For topological systems (Toric code): needs non-local Hamiltonian ...
The classical entropy of quantum states=110ptJoint work with Elliott
... (’79) suggested a definition of their classical entropy based on the coherent state transform. He conjectured that this classical entropy is minimized by states that also minimize the Heisenberg uncertainty inequality, i.e., Gaussian coherent states. Lieb (’78) proved this conjecture and conjectured ...
... (’79) suggested a definition of their classical entropy based on the coherent state transform. He conjectured that this classical entropy is minimized by states that also minimize the Heisenberg uncertainty inequality, i.e., Gaussian coherent states. Lieb (’78) proved this conjecture and conjectured ...
Collective potential for large-N Hamiltonian matrix models and free Fisher information
... N limit to capture features of the theory that the usual perturbation expansion misses. They are crucial in determining the ground state of the matrix model. Is it possible to understand them directly in the large N limit? In this paper we show that this universal term has a natural meaning in the w ...
... N limit to capture features of the theory that the usual perturbation expansion misses. They are crucial in determining the ground state of the matrix model. Is it possible to understand them directly in the large N limit? In this paper we show that this universal term has a natural meaning in the w ...
Introduction - Princeton University Press
... same symmetry. In the field of topological insulators, topological is usually associated with the existence of gapless edge modes when a system is spatially cut in two, but this is not the generic situation; topological phases or even insulators can exist without the presence of gapless edge modes. ...
... same symmetry. In the field of topological insulators, topological is usually associated with the existence of gapless edge modes when a system is spatially cut in two, but this is not the generic situation; topological phases or even insulators can exist without the presence of gapless edge modes. ...
Dynamical quantum-electrodynamics embedding: Combining time
... Although the optical responses of nanostructures can be described by classical electrodynamics, the electronic dynamics in molecule can only be correctly studied by quantum mechanics. Recently, ab initio calculations such as time-dependent density functional theory (TDDFT) have been performed to und ...
... Although the optical responses of nanostructures can be described by classical electrodynamics, the electronic dynamics in molecule can only be correctly studied by quantum mechanics. Recently, ab initio calculations such as time-dependent density functional theory (TDDFT) have been performed to und ...
A short history of fractal-Cantorian space-time
... ¼ /1 ¼ 4 þ /3 , (see Figs. 9 and 10) [8]. D ¼ 521 ¼ / lifted to four dimensions /1 If we project the space-time of vacuum fluctuation on a Poincaré circle we will see a hyperbolic tessellation of this circle with predominantly Klein-curve-like geometry. This is an important part of El Naschie’s t ...
... ¼ /1 ¼ 4 þ /3 , (see Figs. 9 and 10) [8]. D ¼ 521 ¼ / lifted to four dimensions /1 If we project the space-time of vacuum fluctuation on a Poincaré circle we will see a hyperbolic tessellation of this circle with predominantly Klein-curve-like geometry. This is an important part of El Naschie’s t ...
pdf - Martijn Wubs
... have not been explored so far, for example, to manipulate single photons. More fundamentally, it is an important open question whether the same effective-medium parameters suffice to describe the propagation of quantum states of light in metamaterials. The constituents and geometry of a unit cell ca ...
... have not been explored so far, for example, to manipulate single photons. More fundamentally, it is an important open question whether the same effective-medium parameters suffice to describe the propagation of quantum states of light in metamaterials. The constituents and geometry of a unit cell ca ...
Electric fields and quantum wormholes
... charge spectrum in theories of quantum gravity have been conjectured on different grounds [32]. To quantify this, for any state jψi of either system we define a dimensionless quantity called the “wormhole electric susceptibility” χ Δ , χ Δ ≡ hψjΦ2Δ jψi; ...
... charge spectrum in theories of quantum gravity have been conjectured on different grounds [32]. To quantify this, for any state jψi of either system we define a dimensionless quantity called the “wormhole electric susceptibility” χ Δ , χ Δ ≡ hψjΦ2Δ jψi; ...
A Variational Approach to the Schrödinger–Poisson System
... of the wave function k, solution to the 3-D Schrödinger–Poisson system (SPS). Actually, we are interested in giving an insight on the quantum mechanical dynamics of a single particle in vacuum or a polar crystal (the polaron problem), and elucidating about its qualitative behaviour depending on the ...
... of the wave function k, solution to the 3-D Schrödinger–Poisson system (SPS). Actually, we are interested in giving an insight on the quantum mechanical dynamics of a single particle in vacuum or a polar crystal (the polaron problem), and elucidating about its qualitative behaviour depending on the ...