Zobrazeno 1 - 10
of 1 512
pro vyhledávání: '"Nunnenkamp A"'
Autor:
Brighi, Pietro, Nunnenkamp, Andreas
Publikováno v:
Phys. Rev. A 110, L020201 (2024)
We study the dynamics of a Bose-Hubbard model coupled to an engineered environment which in the non-interacting limit is described by the celebrated Hatano-Nelson model. At strong interactions, two bosons occupying the same site form a so-called repu
Externí odkaz:
http://arxiv.org/abs/2403.10449
Autor:
Slim, Jesse J., Wanjura, Clara C., Brunelli, Matteo, del Pino, Javier, Nunnenkamp, Andreas, Verhagen, Ewold
Publikováno v:
Nature 627, 767 (2024)
The fermionic Kitaev chain is a canonical model featuring topological Majorana zero modes. We report the experimental realization of its bosonic analogue in a nano-optomechanical network where parametric interactions induce two-mode squeezing and bea
Externí odkaz:
http://arxiv.org/abs/2309.05825
Publikováno v:
Phys. Rev. Lett. 131, 113602 (2023)
We investigate the physics of an open two-component Dicke model, where the light field mediates non-reciprocal interactions between two spin species. We show that the model, which we dub non-reciprocal Dicke model, exhibits a discrete parity-time ($\
Externí odkaz:
http://arxiv.org/abs/2302.06386
Publikováno v:
Nature Physics 19, 551 (2023)
Strongly driven systems of emitters offer an attractive source of light over broad spectral ranges up to the X-ray region. A key limitation of these systems is that the light they emit is for the most part classical. We challenge this paradigm by bui
Externí odkaz:
http://arxiv.org/abs/2210.03759
Publikováno v:
SciPost Phys. 15, 173 (2023)
Non-Hermitian (NH) lattice Hamiltonians display a unique kind of energy gap and extreme sensitivity to boundary conditions. Due to the NH skin effect, the separation between edge and bulk states is blurred and the (conventional) bulk-boundary corresp
Externí odkaz:
http://arxiv.org/abs/2207.12427
Autor:
Wanjura, Clara C., Slim, Jesse J., del Pino, Javier, Brunelli, Matteo, Verhagen, Ewold, Nunnenkamp, Andreas
Publikováno v:
Nature Physics 19, 1429 (2023)
Nonreciprocity means that the transmission of a signal depends on its direction of propagation. Despite vastly different platforms and underlying working principles, the realisations of nonreciprocal transport in linear, time-independent systems rely
Externí odkaz:
http://arxiv.org/abs/2207.08523
Publikováno v:
Phys. Rev. B 106, 174428 (2022)
The honeycomb magnet $\alpha-$RuCl$_3$ is a prime candidate material for realizing the Kitaev quantum spin liquid (QSL), but it shows long-range magnetic order at low temperature. Nevertheless, its broad inelastic neutron scattering (INS) response at
Externí odkaz:
http://arxiv.org/abs/2207.03515
Autor:
Theodor Lundberg, David J. Ibberson, Jing Li, Louis Hutin, José C. Abadillo-Uriel, Michele Filippone, Benoit Bertrand, Andreas Nunnenkamp, Chang-Min Lee, Nadia Stelmashenko, Jason W. A. Robinson, Maud Vinet, Lisa Ibberson, Yann-Michel Niquet, M. Fernando Gonzalez-Zalba
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-12 (2024)
Abstract Spin qubits in gate-defined silicon quantum dots are receiving increased attention thanks to their potential for large-scale quantum computing. Readout of such spin qubits is done most accurately and scalably via Pauli spin blockade (PSB), h
Externí odkaz:
https://doaj.org/article/fad589327d104537a2a480d3b048da06
Publikováno v:
Phys. Rev. B 106, 214303 (2022)
The fundamental question of how information spreads in closed quantum many-body systems is often addressed through the lens of the bipartite entanglement entropy, a quantity that describes correlations in a comprehensive (nonlocal) way. Among the mos
Externí odkaz:
http://arxiv.org/abs/2204.03016
Autor:
Lundberg, Theodor, Ibberson, David J., Li, Jing, Hutin, Louis, Abadillo-Uriel, José C., Filippone, Michele, Bertrand, Benoit, Nunnenkamp, Andreas, Lee, Chang-Min, Stelmashenko, Nadia, Robinson, Jason W. A., Vinet, Maud, Ibberson, Lisa, Niquet, Yann-Michel, Gonzalez-Zalba, M. Fernando
Publikováno v:
npj Quantum Information 10, 28 (2024)
Spin qubits in gate-defined silicon quantum dots are receiving increased attention thanks to their potential for large-scale quantum computing. Readout of such spin qubits is done most accurately and scalably via Pauli spin blockade (PSB), however va
Externí odkaz:
http://arxiv.org/abs/2110.09842