Coherent Spin Dynamics of a Spin-1 Bose-Einstein
... of BEC is the coherence between particles — every particle shares the same quantum wave function and phase. This matter wave coherence has been demonstrated for the external (motional) degrees of freedom by interfering two condensates. In this thesis, we show that the coherence extends to the intern ...
... of BEC is the coherence between particles — every particle shares the same quantum wave function and phase. This matter wave coherence has been demonstrated for the external (motional) degrees of freedom by interfering two condensates. In this thesis, we show that the coherence extends to the intern ...
Mechanical Weyl Modes in Topological Maxwell Lattices
... modes are robust against disorder or imperfections. In this paper we demonstrate how to create topologically protected zero modes and states of self-stress that extend throughout a sample. These enable the topological design of bulk soft deformation and material failure in a generic class of mechani ...
... modes are robust against disorder or imperfections. In this paper we demonstrate how to create topologically protected zero modes and states of self-stress that extend throughout a sample. These enable the topological design of bulk soft deformation and material failure in a generic class of mechani ...
... suggesting that the super uid component is constituted by the atoms occupying the lowest energy single-particle state. In opposition to London's conjecture, Landau proposed another explanation of the super uidity phenomenon introducing the notion of quasiparticle, that is an excitation of the syst ...
Quantum Annealing with Markov Chain Monte Carlo Simulations
... In contrast to the fact that research laboratories can usually manage quantum computers with up to about a dozen of qubits, D-Wave devices utilize a solid state architecture with over a thousand of interlaced superconducting flux qubits. The manufacturing methods and computing technologies of the D- ...
... In contrast to the fact that research laboratories can usually manage quantum computers with up to about a dozen of qubits, D-Wave devices utilize a solid state architecture with over a thousand of interlaced superconducting flux qubits. The manufacturing methods and computing technologies of the D- ...
Green Function Techniques in the Treatment of Quantum Transport
... For non-interacting systems, one can even solve analytically many models. However, once interactions are introduced - and these are the most interesting cases containing a very rich physics - different approximation schemes have to be introduced to make the problems tractable. In this chapter, we wi ...
... For non-interacting systems, one can even solve analytically many models. However, once interactions are introduced - and these are the most interesting cases containing a very rich physics - different approximation schemes have to be introduced to make the problems tractable. In this chapter, we wi ...
Bending Dynamics of Acetylene: New Modes Born in Bifurcations of
... We have several specific aims in performing the bifurcation analysis of the acetylene bends system. (1) To obtain a systematic global analysis of the bifurcations that lead to novel modes. Can we understand the number and character of the new modes and the role of each in the quantum dynamics? Is th ...
... We have several specific aims in performing the bifurcation analysis of the acetylene bends system. (1) To obtain a systematic global analysis of the bifurcations that lead to novel modes. Can we understand the number and character of the new modes and the role of each in the quantum dynamics? Is th ...
A quantum gas with tunable interactions in an optical lattice
... atoms, giving a large degree of control over different model parameters. Absorption imaging allows the experimentalist to directly measure density and momentum distributions, and it is also possible to obtain information on spatial correlations. The realization that bosonic atoms in an optical latti ...
... atoms, giving a large degree of control over different model parameters. Absorption imaging allows the experimentalist to directly measure density and momentum distributions, and it is also possible to obtain information on spatial correlations. The realization that bosonic atoms in an optical latti ...
the fermi liquid as a renormalization group fixed point
... Developing Luther’s earlier ideas,18 Haldane put forward the method of higher-dimensional bosonization19 in order to treat the Fermi Liquid. Followed by other studies, bosonization approaches to various fermionic liquids have recently been developed.20,21,22,23 At about the same time, the Renormaliz ...
... Developing Luther’s earlier ideas,18 Haldane put forward the method of higher-dimensional bosonization19 in order to treat the Fermi Liquid. Followed by other studies, bosonization approaches to various fermionic liquids have recently been developed.20,21,22,23 At about the same time, the Renormaliz ...
Why CMB physics?
... at the top of Fig. 1) corresponding to typical energies of the order2 of 10−3 eV. In the optical and ultraviolet range of wavelengths the energy density drops of almost two orders of magnitude. In the x-rays (i.e. 10−6 mm < λ < 10−9 mm) the energy density of the emitted radiation drops of more than ...
... at the top of Fig. 1) corresponding to typical energies of the order2 of 10−3 eV. In the optical and ultraviolet range of wavelengths the energy density drops of almost two orders of magnitude. In the x-rays (i.e. 10−6 mm < λ < 10−9 mm) the energy density of the emitted radiation drops of more than ...
ImG - Arnold Sommerfeld Center
... against theory and vice versa. In order to describe these strongly correlated systems, we employ the numerical renormalization group method [2]. This allows us to address both longstanding questions concerning experimental results and new physical phenomena in these fundamental models. This thesis c ...
... against theory and vice versa. In order to describe these strongly correlated systems, we employ the numerical renormalization group method [2]. This allows us to address both longstanding questions concerning experimental results and new physical phenomena in these fundamental models. This thesis c ...
Exploring topological phases with quantum walks
... experiments [11,12,14,15] realizes a nontrivial 1D topological phase. This topological phase is analogous to that of the Su-Schrieffer-Heeger (SSH) model of polyacetylene [17]. The topology of this phase is characterized by a nonzero winding of the spinor eigenstates on a great circle of the Bloch s ...
... experiments [11,12,14,15] realizes a nontrivial 1D topological phase. This topological phase is analogous to that of the Su-Schrieffer-Heeger (SSH) model of polyacetylene [17]. The topology of this phase is characterized by a nonzero winding of the spinor eigenstates on a great circle of the Bloch s ...
Philosophy of Science, 69 (December 2002) pp
... In view of the generality of this question one may surmise that the answer to it is "yes"; that is to say, one may conjecture that given any two correlations there can always exist a Reichenbachian common-cause which is a common-cause for both correlations, since, one may reason, we just have to ref ...
... In view of the generality of this question one may surmise that the answer to it is "yes"; that is to say, one may conjecture that given any two correlations there can always exist a Reichenbachian common-cause which is a common-cause for both correlations, since, one may reason, we just have to ref ...
Bulk and Structure Inversion Asymmetry in Semiconductor Quantum
... coupling of the electron’s spin and orbital momentum degrees of freedom via the magnetic field Bso that arises in the rest frame of an electron due to its motion in an electric field. In gyrotropic quantum wells (QWs) based e.g. on III-V semiconductors this coupling causes a spin-dependent force for ...
... coupling of the electron’s spin and orbital momentum degrees of freedom via the magnetic field Bso that arises in the rest frame of an electron due to its motion in an electric field. In gyrotropic quantum wells (QWs) based e.g. on III-V semiconductors this coupling causes a spin-dependent force for ...
Ground-state stability and criticality of two
... Our results show that the ground-state diagram of twoelectron atoms interacting via Yukawa potentials does not present a 2e− − 0e− line. That is, the systems always undergoes a 2e− − 1e− transition before losing both electrons as the screening grows. Even the numerical results are not accurate enoug ...
... Our results show that the ground-state diagram of twoelectron atoms interacting via Yukawa potentials does not present a 2e− − 0e− line. That is, the systems always undergoes a 2e− − 1e− transition before losing both electrons as the screening grows. Even the numerical results are not accurate enoug ...
Manipulation and Simulation of Cold Atoms in
... single atoms in selected lattice sites, and the other a fault-tolerant scheme to load atoms from a reservoir gas, which is not trapped by the lattice. Under appropriate conditions, the sympathetic cooling process between the reservoir gas and lattice atoms that forms part of the second method gives ...
... single atoms in selected lattice sites, and the other a fault-tolerant scheme to load atoms from a reservoir gas, which is not trapped by the lattice. Under appropriate conditions, the sympathetic cooling process between the reservoir gas and lattice atoms that forms part of the second method gives ...
DECOHERENCE AND DYNAMICAL DECOUPLING IN SOLID-STATE SPIN QUBITS Wayne Martin Witzel
... hŴ i when only considering nuclei in set S. Cluster contribution from cluster C. ...
... hŴ i when only considering nuclei in set S. Cluster contribution from cluster C. ...
Classical Simulation of Quantum Systems
... N interacting, point-like, classical particles: this system has a phase space of dimension 6N, and tracking the time evolution caused by the Hamiltonian, i. e., following a trajectory in phase space, means working with an amount of data linear in the system size. The computational effort to describe ...
... N interacting, point-like, classical particles: this system has a phase space of dimension 6N, and tracking the time evolution caused by the Hamiltonian, i. e., following a trajectory in phase space, means working with an amount of data linear in the system size. The computational effort to describe ...
Colloquium: Physics of optical lattice clocks
... posed a difficulty, as electronic cycle counters were not able to cope with optical frequencies. This difficulty was resolved with the invention of optical frequency combs, which act as “optical gears” and link the optical clocks to electronic counters (Jones et al., 2000; Th. Udem et al., 1999). Co ...
... posed a difficulty, as electronic cycle counters were not able to cope with optical frequencies. This difficulty was resolved with the invention of optical frequency combs, which act as “optical gears” and link the optical clocks to electronic counters (Jones et al., 2000; Th. Udem et al., 1999). Co ...
Quantum Computation with Nuclear Spins in Quantum Dots
... absolute value squared of the Bloch wave function at the location of the nucleus. This parameter has been measured for several materials [59]. For later convenience we write the nuclear magnetic moment as µI = µN gI , where µN = e~/2mproton = 5.05 × 10−27 J/T is the nuclear magneton and gI the nucle ...
... absolute value squared of the Bloch wave function at the location of the nucleus. This parameter has been measured for several materials [59]. For later convenience we write the nuclear magnetic moment as µI = µN gI , where µN = e~/2mproton = 5.05 × 10−27 J/T is the nuclear magneton and gI the nucle ...
