Treatment of Pneumonias with Serum and with M &amp; B 693

Andersen, Torben; Neukirch, F

doi:10.1111/j.0954-6820.1941.tb13684.x

Cited by 13 publications

(17 citation statements)

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“…1 and 2. We corroborate the coexistence between d-wave superfluidity and normal normal edges in accordance with results from a calculation on a similar system sufficiently away from half-filling in the weakly interacting limit [20]. In addition, we find that in the center of the trap, since the fermion density reaches one, there is a reminiscence of the Mott insulating state which results in a downturn of the Fermi liquid order parameterχ i .…”

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confidence: 90%

“…We consider relatively small fillings such that only a superfluid cloud is left in the center of the trap and antiferromagnetism is hindered by the motion of atoms [20]. We investigate the coexistence between d-wave superfluidity and a normal phase at the boundaries applying an effective theory of a doped Mott insulator.…”

mentioning

confidence: 99%

“…We found a linear profile of the fermion density close to the boundaries. When decreasing the density, one might observe magnetic real-space shell structures competing with the superfluid phase [20]. For dipolar fermions, d-wave bond order solidity might also occur at half-filling [29].…”

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confidence: 99%

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d-wave superfluid with gapless edges in a cold-atom trap

Gadsbølle

Song²,

Hur³

2012

Phys. Rev. A

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We consider a strongly repulsive fermionic gas in a two-dimensional optical lattice confined by a harmonic trapping potential. To address the strongly repulsive regime, we consider the t − J Hamiltonian. The presence of the harmonic trapping potential enables the stabilization of coexisting and competing phases. In particular, at low temperatures, this allows the realization of a d-wave superfluid region surrounded by purely (gapless) normal edges. Solving the Bogoliubov-de Gennes equations and comparing with the local density approximation, we show that the proximity to the Mott insulator is revealed by a downturn of the Fermi liquid order parameter at the center of the trap where the d-wave gap has a maximum. The density profile evolves linearly with distance.

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confidence: 90%

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confidence: 99%

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d-wave superfluid with gapless edges in a cold-atom trap

Gadsbølle

Song²,

Hur³

2012

Phys. Rev. A

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“…The mean-field Hamiltonian is diagonalized by solving the Bogoliubov-de Gennes equations (BdG) [35]. This mean-field approach is commonly used for studying competing magnetic and superconducting phases in the context of high T c superconductivity [13,36] and in the context of ultra cold fermions [37]. It also has been recently employed for describing strongly correlated systems, like effective p-wave interaction and topological superfluids in quantum gases in lower dimensions systems (1D and 2D) [8].…”

Section: Modelmentioning

confidence: 99%

Supersolid phases of dipolar fermions in a two-dimensional-lattice bilayer array

Camacho-Guardián

Paredes

2016

Phys. Rev. A

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Supersolid phases as a result of a novel coexistence of superfluid and density ordered checkerboard phases are predicted to appear in ultracold Fermi molecules confined in a bilayer array of 2D square optical lattices. We demonstrate the existence of these phases within the inhomogeneous mean field approach. In particular, we show that tuning the interlayer separation distance at a fixed value of the chemical potential produces different fractions of superfluid, density ordered and supersolid phases.

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“…A major objective in the study of atoms in optical lattices is to unravel the physics of quantum magnetism, and for this purpose it is crucial to be able to measure the spin correlations of the atoms efficiently. Several methods have been suggested including Bragg scattering [7], time-of-flight measurements [8][9][10], and light polarization experiments [11]. A complication for these methods is, however, that the experimental signal is small, and that one has to average over many experimental realizations.…”

Section: Introductionmentioning

confidence: 99%

Inducing spin-dependent tunneling to probe magnetic correlations in optical lattices

et al. 2012

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We suggest a simple experimental method for probing antiferromagnetic spin correlations of twocomponent Fermi gases in optical lattices. The method relies on a spin selective Raman transition to excite atoms of one spin species to their first excited vibrational mode where the tunneling is large. The resulting difference in the tunneling dynamics of the two spin species can then be exploited, to reveal the spin correlations by measuring the number of doubly occupied lattice sites at a later time. We perform quantum Monte Carlo simulations of the spin system and solve the optical lattice dynamics numerically to show how the timed probe can be used to identify antiferromagnetic spin correlations in optical lattices.

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Treatment of Pneumonias with Serum and with M & B 693

Cited by 13 publications

References 0 publications

d-wave superfluid with gapless edges in a cold-atom trap

d-wave superfluid with gapless edges in a cold-atom trap

Supersolid phases of dipolar fermions in a two-dimensional-lattice bilayer array

Inducing spin-dependent tunneling to probe magnetic correlations in optical lattices

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