Zobrazeno 61 - 70
of 7 460
pro vyhledávání: '"Haldar, P"'
The out-of-equilibrium many-body quantum dynamics of an interacting Bose gas trapped in a one-dimensional composite double-well potential is studied by solving the many-body Schr\"odinger equation numerically accurately by employing the multiconfigur
Externí odkaz:
http://arxiv.org/abs/2303.14804
Autor:
Havir, Harald, Haldar, Subhomoy, Khan, Waqar, Lehmann, Sebastian, Dick, Kimberly A., Thelander, Claes, Samuelsson, Peter, Maisi, Ville F.
Quantum dots are frequently used as charge sensitive devices in low temperature experiments to probe electric charge in mesoscopic conductors where the current running through the quantum dot is modulated by the nearby charge environment. Recent expe
Externí odkaz:
http://arxiv.org/abs/2303.13048
Publikováno v:
Phys. Rev. Lett. 131, 131601 (2023)
The presence of nearby conformal field theories (CFTs) hidden in the complex plane of the tuning parameter was recently proposed as an elegant explanation for the ubiquity of "weakly first-order" transitions in condensed matter and high-energy system
Externí odkaz:
http://arxiv.org/abs/2303.02171
A Michelson-type interferometer with two-mode squeezed coherent state input is considered. Such an interferometer has a better phase sensitivity over the shot-noise limit by a factor of $e^{2r}$, where $r$ is the squeezing parameter [Phys. Rev. A 102
Externí odkaz:
http://arxiv.org/abs/2303.00990
While imitation learning provides us with an efficient toolkit to train robots, learning skills that are robust to environment variations remains a significant challenge. Current approaches address this challenge by relying either on large amounts of
Externí odkaz:
http://arxiv.org/abs/2303.01497
Publikováno v:
Phys. Rev. Applied 21, 024041 (2024)
Future quantum technologies such as quantum communication, quantum sensing, and distributed quantum computation, will rely on networks of shared entanglement between spatially separated nodes. In this work, we provide improved protocols/policies for
Externí odkaz:
http://arxiv.org/abs/2303.00777
This is an unabridged version of a journal manuscript that has been submitted for publication [1]. (Due to length restrictions, we were forced to remove substantial amounts of content from the version that was submitted to the journal, including more
Externí odkaz:
http://arxiv.org/abs/2302.13431
Autor:
Haldar, Asmi
The Kohlrausch(-Williams-Watts) law of stretched exponential relaxation has been observed for more than a century and a half in diverse complex classical systems. Here we show that this law describes relaxation quite generically in closed (executing
Externí odkaz:
http://arxiv.org/abs/2302.12275
Quantum entanglement, lacking any classical counterpart, provides a fundamental new route to characterize the quantum nature of many-body states. In this work, we discuss an implementation of a new path integral method [Phys. Rev. Res. 2, 033505 (202
Externí odkaz:
http://arxiv.org/abs/2302.10940
We study the emergence of spontaneous skyrmion lattices in an Fe monolayer in fcc and hcp stacking on the Ir(111) surface using density functional theory (DFT). For fcc-Fe/Ir(111) we find the well-known square nanoskyrmion lattice. However, for hcp-F
Externí odkaz:
http://arxiv.org/abs/2301.13851