Zobrazeno 1 - 10
of 678
pro vyhledávání: '"Kattel P"'
We theoretically study the open quantum system dynamics (in the Trotterized limit) of integrable quantum circuits in the presence of onsite dephasing noise with a spin-$\frac{1}{2}$ impurity interacting at the edge. Using a combination of Bethe Ansat
Externí odkaz:
http://arxiv.org/abs/2408.10304
We show that a gapped spin-$S$ chain with antiferromagnetic (AFM) order exhibits in the thermodynamic limit exponentially localized fractional $\pm \frac{S}{2}$ edge modes when the system possesses U(1) symmetry. We show this for integrable and non i
Externí odkaz:
http://arxiv.org/abs/2406.11955
We construct an exactly solvable $\mathscr{PT}-$symmetric non-Hermitian model where a spin$-\frac{1}{2}$ isotropic quantum Heisenberg spin chain is coupled to two spin$-\frac{1}{2}$ Kondo impurities at its boundaries with coupling strengths that are
Externí odkaz:
http://arxiv.org/abs/2406.10334
Non-Hermitian Hamiltonians capture several aspects of open quantum systems, such as dissipation of energy and non-unitary evolution. An example is an optical lattice where the inelastic scattering between the two orbital mobile atoms in their ground
Externí odkaz:
http://arxiv.org/abs/2402.09510
We investigate the boundary phenomena that arise in a finite-size $XX$ spin chain interacting through an $XX$ interaction with a spin$-\frac{1}{2}$ impurity located at its edge. Upon Jordan-Wigner transformation, the model is described by a quadratic
Externí odkaz:
http://arxiv.org/abs/2401.04207
Autor:
Yuan, Kun, Kattel, Manasi, Lavanchy, Joel L., Navab, Nassir, Srivastav, Vinkle, Padoy, Nicolas
Modern operating room is becoming increasingly complex, requiring innovative intra-operative support systems. While the focus of surgical data science has largely been on video analysis, integrating surgical computer vision with language capabilities
Externí odkaz:
http://arxiv.org/abs/2312.10251
We investigate the boundary effects that arise when spin-$\frac{1}{2}$ impurities interact with the edges of the antiferromagnetic spin-$\frac{1}{2}$ Heisenberg chain through spin exchange interactions. We consider both cases when the couplings are f
Externí odkaz:
http://arxiv.org/abs/2311.10569
Publikováno v:
J. Phys. A: Math. Theor. 56 325001 (2023)
We construct the exact solution of a non-Hermitian $\mathscr{PT}$-symmetric isotropic Heisenberg spin chain with integrable boundary fields. We find that the system exhibits two types of phases we refer to as $A$ and $B$ phases. In the $B$ type phase
Externí odkaz:
http://arxiv.org/abs/2301.06004
Publikováno v:
Environmental Science and Ecotechnology, Vol 22, Iss , Pp 100478- (2024)
Urbanization is modifying aquatic ecosystems, with hydrodynamic and trophic variations altering biotic assemblages in rapidly expanding cities worldwide. Despite the fundamental bioenergetic role of food webs within these assemblages, their respondin
Externí odkaz:
https://doaj.org/article/cb62c6142bba4b1eb0ae933f3ffcf24c
Publikováno v:
Fundamental and Applied Agriculture, Vol 9, Iss 3, Pp 213-219 (2024)
Postharvest loss in tomatoes is significantly high after harvest, due to several factors. The study on the effect of different concentrations of calcium chloride on shelf life and quality of tomato (Solanum lycopersicum) at the time of storage was do
Externí odkaz:
https://doaj.org/article/0a5d523917bc41b5b5902945e07e3e9a