Spintronic properties of topological surface Dirac electrons with hexagonal warping
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DOI: 10.1103/physrevb.103.054402
Abstract: We study spin-torque and electrical transport properties of Dirac electrons on the surface of magnetic topological insulators. Usually, surface Dirac electrons are described by a linear-dispersion model, which exhibits various peculiar features originating from the… read more here.
Keywords: ensuremath lambda; surface dirac; dirac electrons; ensuremath ... See more keywords
Charge imbalance in λ−(BETS)2GaCl4 and their interplay with superconductivity
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.045108
Abstract: The two-dimensional organic superconductor $\ensuremath{\lambda}\ensuremath{-}{(\mathrm{BETS})}_{2}{\mathrm{GaCl}}_{4}$ exhibits pronounced charge fluctuations below $T\ensuremath{\approx}150$ K, in contrast to the sibling compound $\ensuremath{\kappa}\ensuremath{-}{(\mathrm{BETS})}_{2}{\mathrm{GaCl}}_{4}$ that remains metallic down to milli-Kelvin. Infrared spectroscopy reveals only minor splitting in the vibrational features… read more here.
Keywords: ensuremath lambda; mathrm bets; bets mathrm; ensuremath ... See more keywords
Topological charge scaling at a quantum phase transition
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DOI: 10.1103/physrevb.104.l020405
Abstract: We reexamine the Kosterlitz-Thouless phase transition in the ground state $|{\mathrm{\ensuremath{\Psi}}}_{0}\ensuremath{\rangle}$ of an antiferromagnetic spin-$\frac{1}{2}$ Heisenberg chain with nearest- and next-nearest-neighbor interactions $\ensuremath{\lambda}$ from a different perspective: After defining winding number (topological charge) $W$ in… read more here.
Keywords: ensuremath lambda; psi ensuremath; mathrm ensuremath; ensuremath ... See more keywords
Tensor network state approach to quantum topological phase transitions and their criticalities of Z2 topologically ordered states
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DOI: 10.1103/physrevb.98.165115
Abstract: Due to the absence of local order parameters, it is a challenging task to characterize the quantum topological phase transitions between topologically ordered phases in two dimensions. In this paper, we construct a topologically ordered… read more here.
Keywords: phase; quantum; ensuremath; topological phase ... See more keywords
HΛΛ5 and HeΛΛ5 hypernuclei reexamined in halo/cluster effective theory
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DOI: 10.1103/physrevc.103.014001
Abstract: The $J=1/2$ iso-doublet double-$\mathrm{\ensuremath{\Lambda}}$-hypernuclei, namely, $_{\mathrm{\ensuremath{\Lambda}}\mathrm{\ensuremath{\Lambda}}}^{5}\mathrm{H}$ and $_{\mathrm{\ensuremath{\Lambda}}\mathrm{\ensuremath{\Lambda}}}^{5}\mathrm{He}$, are examined as the three-body cluster states, $\mathrm{\ensuremath{\Lambda}}\mathrm{\ensuremath{\Lambda}}t$ ($t\ensuremath{\equiv}{}^{3}$H or triton) and $\mathrm{\ensuremath{\Lambda}}\mathrm{\ensuremath{\Lambda}}h$ ($h\ensuremath{\equiv}{}^{3}$He or helion), respectively, in a model-independent framework utilizing pionless halo effective theory. Both… read more here.
Keywords: ensuremath; ensuremath lambda; lambda mathrm; mathrm ensuremath ... See more keywords
Polarizing fragmentation function and the Λ polarization in e+e− processes
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DOI: 10.1103/physrevd.100.014029
Abstract: The surprising polarization of $\mathrm{\ensuremath{\Lambda}}$'s and other hyperons measured in many unpolarized hadronic processes, $pN\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Lambda}}}^{\ensuremath{\uparrow}}X$, has been a long-standing challenge for QCD phenomenology. One possible explanation was suggested, related to nonperturbative properties of the quark… read more here.
Keywords: polarizing fragmentation; ensuremath lambda; mathrm ensuremath; ensuremath ... See more keywords
Search for a DD¯ bound state in the Λb→ΛDD¯ process
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DOI: 10.1103/physrevd.103.114013
Abstract: We investigate the process of ${\mathrm{\ensuremath{\Lambda}}}_{b}\ensuremath{\rightarrow}\mathrm{\ensuremath{\Lambda}}D\overline{D}$, by taking into account the contributions from the $s$-wave $D\overline{D}$ interaction within the coupled-channel unitary approach, and the intermediate $\ensuremath{\psi}(3770)$ resonance. In addition to the peak of the $\ensuremath{\psi}(3770)$,… read more here.
Keywords: bound state; ensuremath; ensuremath lambda; process ... See more keywords
Inflation with Gauss-Bonnet coupling
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DOI: 10.1103/physrevd.98.083521
Abstract: We consider inflationary models with the inflaton coupled to the Gauss-Bonnet term assuming a special relation ${\ensuremath{\delta}}_{1}=2\ensuremath{\lambda}{\ensuremath{\epsilon}}_{1}$ between the two slow-roll parameters ${\ensuremath{\delta}}_{1}$ and ${\ensuremath{\epsilon}}_{1}$. For the slow-roll inflation, the assumed relation leads to the… read more here.
Keywords: gauss bonnet; ensuremath; ensuremath lambda; ensuremath epsilon ... See more keywords