Ground states and excitations of spatially anisotropic quantum antiferromagnets Oleg Starykh
... EXPERIMENT: Longitudinal Field ,Tc vs B; SDW, …, cone • Very different behavior for B along b, c axes (both orthogonal to DM direction a) • Additional anisotropies in the problem? ...
... EXPERIMENT: Longitudinal Field ,Tc vs B; SDW, …, cone • Very different behavior for B along b, c axes (both orthogonal to DM direction a) • Additional anisotropies in the problem? ...
IOSR Journal of Mathematics (IOSR-JM) ISSN: 2278-5728. www.iosrjournals.org
... V. Einstein field equation in complex quantum state : The work covered in the Einstein field equations did not tell us the important item of information about the universe is what happened, when the volume of the matter universe squeezed into zero volume and there before. To find the answer to this ...
... V. Einstein field equation in complex quantum state : The work covered in the Einstein field equations did not tell us the important item of information about the universe is what happened, when the volume of the matter universe squeezed into zero volume and there before. To find the answer to this ...
Grand canonical ensemble
... • There are no real forces acting between the bosons, but there IS a real correlation in their motion caused by their identity (symmetrical wave functions) • BEC has been so difficult to observe, because other (classical G/L or G/S) phase transitions set on much earlier • BEC is a "condensation in t ...
... • There are no real forces acting between the bosons, but there IS a real correlation in their motion caused by their identity (symmetrical wave functions) • BEC has been so difficult to observe, because other (classical G/L or G/S) phase transitions set on much earlier • BEC is a "condensation in t ...
Measurement-based and Universal Blind Quantum Computation
... in terms of density matrices [NC00, Pre98]. Thus if a projector P acts on a state |ψi then the result is P |ψi; the resulting transformation of density matrices is |ψih7→ |P |ψihP |. For a general density matrix ρ we have ρ 7→ P ρP , note that since P is self-adjoint we do not have to write P † . Wh ...
... in terms of density matrices [NC00, Pre98]. Thus if a projector P acts on a state |ψi then the result is P |ψi; the resulting transformation of density matrices is |ψih7→ |P |ψihP |. For a general density matrix ρ we have ρ 7→ P ρP , note that since P is self-adjoint we do not have to write P † . Wh ...
quantum transition-state theory. II. Recovery of the exact quantum
... correlates flux through the ring-polymer dividing surface with the Miller-Schwarz-Tromp3 side function, and which gives the exact quantum rate in the limit t → ∞. We describe the Ndimensional integral over momenta obtained in this limit by an N-dimensional hypercube, and note that the t → ∞ limits o ...
... correlates flux through the ring-polymer dividing surface with the Miller-Schwarz-Tromp3 side function, and which gives the exact quantum rate in the limit t → ∞. We describe the Ndimensional integral over momenta obtained in this limit by an N-dimensional hypercube, and note that the t → ∞ limits o ...
Generalized Second Law in String Cosmology
... classical GSL bounds dilaton kinetic energy and quantum GSL bounds H and therefore, at a certain moment of the evolution Ḣ must vanish (at least asymptotically), and then curvature is bounded. If cusp singularities are removed by adding higher order corrections, as might be expected, we can apply G ...
... classical GSL bounds dilaton kinetic energy and quantum GSL bounds H and therefore, at a certain moment of the evolution Ḣ must vanish (at least asymptotically), and then curvature is bounded. If cusp singularities are removed by adding higher order corrections, as might be expected, we can apply G ...
Spin States in Graphene Quantum Dots
... values (e.g., Sð1Þ ¼ 1=2 for adding a spin-up electron or Sð1Þ ¼ 3=2 for adding a spin-up electron while ‘‘flipping’’ another spin from down to up). Hence differences between three successive spin ground states take on integer values Sð2Þ Nþ1 ¼ SNþ1 2SN þ SN1 ¼ 0; 1; 2; . . . . Apart from th ...
... values (e.g., Sð1Þ ¼ 1=2 for adding a spin-up electron or Sð1Þ ¼ 3=2 for adding a spin-up electron while ‘‘flipping’’ another spin from down to up). Hence differences between three successive spin ground states take on integer values Sð2Þ Nþ1 ¼ SNþ1 2SN þ SN1 ¼ 0; 1; 2; . . . . Apart from th ...
Full text in PDF form
... The aim of this paper is to present some applications of the formalism developed in [8]. Namely, we shall emphasize the robustness against interaction with the environment of the entanglement of the quantum vacuum, due to the non-unitarity of the mapping between the vacua in the flat and curved fram ...
... The aim of this paper is to present some applications of the formalism developed in [8]. Namely, we shall emphasize the robustness against interaction with the environment of the entanglement of the quantum vacuum, due to the non-unitarity of the mapping between the vacua in the flat and curved fram ...
A simple experiment for discussion of quantum interference and
... process is clearly inapplicable.6 Dürr, Nonn, and Rempe1 refuted that argument in the case of their atom interference experiment by a detailed calculation of the recoil momentum associated with microwave photon absorption. One need not go through such a calculation here because the eraser restores ...
... process is clearly inapplicable.6 Dürr, Nonn, and Rempe1 refuted that argument in the case of their atom interference experiment by a detailed calculation of the recoil momentum associated with microwave photon absorption. One need not go through such a calculation here because the eraser restores ...
Topological Chern Indices in Molecular Spectra
... quantum number Cg , namely the topological Chern index. This result has been formulated in a more mathematical context by Bellissard [9] and by Zelditch [10] but was not published due to its “apparent mathematical simplicity.” We will prove formula (3) below. A few remarks are in order here. Since 共 ...
... quantum number Cg , namely the topological Chern index. This result has been formulated in a more mathematical context by Bellissard [9] and by Zelditch [10] but was not published due to its “apparent mathematical simplicity.” We will prove formula (3) below. A few remarks are in order here. Since 共 ...
A Weak Gravity Conjecture for Scalar Field Theories
... µ ∼ which agrees with the conjecture (6). It would be useful to work out the exact value of √gG at the critical point. All the discussions above are on the classical level. One may wonder whether the conclusion is reliable on the quantum level. To check this, we should consider some quantum correcti ...
... µ ∼ which agrees with the conjecture (6). It would be useful to work out the exact value of √gG at the critical point. All the discussions above are on the classical level. One may wonder whether the conclusion is reliable on the quantum level. To check this, we should consider some quantum correcti ...
Resonance hit
... Proofs by semiclassical and quantum simulations • Why semiclassical and not just quantum mechanics – only way to prove a correspondence between the classical notion of flux of particles and quantum wavefunctions ...
... Proofs by semiclassical and quantum simulations • Why semiclassical and not just quantum mechanics – only way to prove a correspondence between the classical notion of flux of particles and quantum wavefunctions ...
Kondo Screening Cloud Around a Quantum Dot
... [15] performed in zero field with open boundary conditions as well as with cluster mean field calculations [16]. Other theoretical studies include Refs. [17–20]. The behavior of the persistent current, j, in quantum dot systems is therefore the subject of considerable controversy. In this Letter we ...
... [15] performed in zero field with open boundary conditions as well as with cluster mean field calculations [16]. Other theoretical studies include Refs. [17–20]. The behavior of the persistent current, j, in quantum dot systems is therefore the subject of considerable controversy. In this Letter we ...
Creative Advantage Report final
... As the iconic genius, Albert Einstein, once said, “The significant problems we face cannot be solved at the same level of thinking we were at when we created them.” This means that in order to ...
... As the iconic genius, Albert Einstein, once said, “The significant problems we face cannot be solved at the same level of thinking we were at when we created them.” This means that in order to ...
Post-Markov master equation for the dynamics of open quantum
... Obviously, both Eq. Ž10. and its asymptotic form Ž11. are not of Lindblad form Ž1. due to the presence of the last three terms. Therefore, as a Markov equation with constant coefficients, we cannot expect Ž11. to preserve the positivity of r t if applied to an arbitrary initial density operator. Our ...
... Obviously, both Eq. Ž10. and its asymptotic form Ž11. are not of Lindblad form Ž1. due to the presence of the last three terms. Therefore, as a Markov equation with constant coefficients, we cannot expect Ž11. to preserve the positivity of r t if applied to an arbitrary initial density operator. Our ...
Semiclassical Correlation in Density
... Problem!! The KS state remains doubly-occupied throughout – cannot evolve into a singly-excited KS state under any one-body Hamiltonian. -- Exact KS system achieves the target excited-state density, but with a doublyoccupied ground-state orbital !! -- Exact vxc (t) is unnatural and difficult to appr ...
... Problem!! The KS state remains doubly-occupied throughout – cannot evolve into a singly-excited KS state under any one-body Hamiltonian. -- Exact KS system achieves the target excited-state density, but with a doublyoccupied ground-state orbital !! -- Exact vxc (t) is unnatural and difficult to appr ...
Chiral Spin States in the Pyrochlore Heisenberg Magnet
... been employed to understand the nature of the ground state of the spin-1/2 Heisenberg model on the pyrochlore lattice. From VMC calculations, of the four different flux states considered, the [/2,/2,0]-flux state had the lowest energy. Although the [/2,/2,0]-flux state had the lowest energy, ...
... been employed to understand the nature of the ground state of the spin-1/2 Heisenberg model on the pyrochlore lattice. From VMC calculations, of the four different flux states considered, the [/2,/2,0]-flux state had the lowest energy. Although the [/2,/2,0]-flux state had the lowest energy, ...