Results 21 to 30 of about 406 (180)

Engineering Dissipation with Resistive Elements in Circuit Quantum Electrodynamics

open access: yesAdvanced Quantum Technologies, Volume 4, Issue 11, November 2021., 2021
This article discusses how to simulate thermal baths by inserting resistive elements in networks of superconducting qubits. Its aim is to be both an instructive tutorial about how to derive and characterize the Hamiltonian of general dissipative superconducting circuits with capacitive coupling, and a review of the most relevant theoretical and ...
Marco Cattaneo, Gheorghe Sorin Paraoanu
wiley   +1 more source

Quantum Simulating the Electron Transport in Quantum Cascade Laser Structures

open access: yesAdvanced Quantum Technologies, Volume 4, Issue 10, October 2021., 2021
Made by stacking tailored quantum wells, quantum cascade lasers are presently designed using mostly classical numerical tools. Nowadays, cold atom experiments provide a platform for full quantum simulation of key aspects, such as the electronic transport.
Andrea Trombettoni   +7 more
wiley   +1 more source

Theory of ultracold atomic Fermi gases [PDF]

open access: yesReviews of Modern Physics, 2008
The physics of quantum degenerate atomic Fermi gases in uniform as well as in harmonically trapped configurations is reviewed from a theoretical perspective. Emphasis is given to the effect of interactions that play a crucial role, bringing the gas into a superfluid phase at low temperature.
Giorgini, Stefano   +2 more
openaire   +4 more sources

Effects of quantum mechanical identity in particle scattering: experimental observations (and lack thereof)

open access: yesJournal of the Royal Society of New Zealand, Volume 51, Issue 3-4, Page 489-512, September ‐ December 2021., 2021
ABSTRACT On the occasion of the 150th anniversary of Ernest Rutherford's birth I discuss how indistinguishabilty profoundly affects the collisions of identical particles. In the case of a Coulombic interaction this leads to a dramatic modification of Rutherford's famous scattering formula as predicted by Nevill Mott.
Niels Kjærgaard
wiley   +1 more source

Spin-orbital-angular-momentum-coupled quantum gases

open access: yesAAPPS Bulletin, 2022
We briefly review the recent progress of theories and experiments on spin-orbital-angular-momentum (SOAM)-coupled quantum gases. The coupling between the intrinsic degree of freedom of particles and their external orbital motions widely exists in the ...
Shi-Guo Peng   +5 more
doaj   +1 more source

Itinerant ferromagnetism in ultracold Fermi gases [PDF]

open access: yesPhysical Review A, 2011
Itinerant ferromagnetism in cold Fermi gases with repulsive interactions is studied applying the Jastrow-Slater approximation generalized to finite polarization and temperature. For two components at zero temperature a second order transition is found at $ak_F\simeq0.90$ compatible with QMC.
openaire   +3 more sources

Cavity optomechanical sensing

open access: yesNanophotonics, Volume 10, Issue 11, Page 2799-2832, September 2021., 2021
Abstract Cavity optomechanical systems enable interactions between light and mechanical resonators, providing a platform both for fundamental physics of macroscopic quantum systems and for practical applications of precision sensing. The resonant enhancement of both mechanical and optical response in the cavity optomechanical systems has enabled ...
Bei‐Bei Li   +3 more
wiley   +1 more source

Plasmon Mediation of Charge Pairing in High Temperature Superconductors

open access: yesAdvances in Condensed Matter Physics, Volume 2021, Issue 1, 2021., 2021
A Bose‐Einstein condensate (BEC) of a nonzero momentum Cooper pair constitutes a composite boson or simply a boson. We demonstrated that the quantum coherence of the two‐component BEC (boson and fermion condensates) is controlled by plasmons. It has been proposed that plasmons, observed in both electron‐doped and hole‐doped cuprates, originates from ...
Abel Mukubwa   +2 more
wiley   +1 more source

Polariton panorama

open access: yesNanophotonics, Volume 10, Issue 1, Page 549-577, January 2021., 2021
Abstract In this brief review, we summarize and elaborate on some of the nomenclature of polaritonic phenomena and systems as they appear in the literature on quantum materials and quantum optics. Our summary includes at least 70 different types of polaritonic light–matter dressing effects. This summary also unravels a broad panorama of the physics and
D. N. Basov   +4 more
wiley   +1 more source

Collective excitations of a charged Fermi superfluid in the BCS-BEC crossover

open access: yesNew Journal of Physics, 2023
We consider collective excitations in the superfluid state of Fermi condensed charged gases. The dispersion and damping of collective excitations at nonzero temperatures are examined, and the coexistence and interaction of different branches of ...
S N Klimin   +3 more
doaj   +1 more source

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