Zobrazeno 1 - 10
of 20 856
pro vyhledávání: '"adiabaticity"'
We propose shortcut to adiabaticity protocols for Bose-Einstein condensates trapped in generalized anisotropic harmonic traps in three dimensions. These protocols enable high-fidelity tuning of trap geometries on time scales much faster than those re
Externí odkaz:
http://arxiv.org/abs/2411.18861
Autor:
Avalos, C. F. P., de Oliveira, M. C.
Trapped ion systems present non-classical characteristics such as squeezed states that show a quantum advantage in quantum sensing, quantum information processing and quantum thermodynamics. We analyze the non-classical characteristics of a system de
Externí odkaz:
http://arxiv.org/abs/2411.04241
Shortcuts to adiabaticity are strategies for conserving adiabatic invariants under non-adiabatic (i.e. fast-driving) conditions. Here, we show how to extend classical, Hamiltonian shortcuts to adiabaticity to allow the crossing of a phase-space separ
Externí odkaz:
http://arxiv.org/abs/2408.06916
We explore the near adiabatic dynamics in a non-Hermitian quantum many-body system by investigating a finite-time ramp of the imaginary vector potential in the interacting Hatano-Nelson model. The excess energy, the Loschmidt echo, and the density im
Externí odkaz:
http://arxiv.org/abs/2408.07122
Autor:
Mahunta, Shishira, Mukherjee, Victor
We study shortcuts to adiabaticity (STA) through counterdiabatic driving in quantum critical systems, in the presence of dissipation. We evaluate unitary as well as non-unitary controls, such that the system density matrix follows a prescribed trajec
Externí odkaz:
http://arxiv.org/abs/2409.06387
Robust quantum control is essential for the development of quantum computers, which rely on precise manipulation of qubits. One form of quantum control is stimulated Raman adiabatic passage (STIRAP), which ordinarily is a state transfer protocol but
Externí odkaz:
http://arxiv.org/abs/2406.17321
Autor:
Zhang, J. -W., Bu, J. -T., Li, J. C., Meng, Weiquan, Ding, W. -Q., Wang, B., Yuan, W. -F., Du, H. -J., Ding, G. -Y., Chen, W. -J., Chen, L., Zhou, F., Xu, Zhenyu, Feng, M.
Publikováno v:
Phys. Rev. Lett. 132, 213602 (2024)
The approach of shortcuts to adiabaticity enables the effective execution of adiabatic dynamics in quantum information processing with enhanced speed. Owing to the inherent trade-off between dynamical speed and the cost associated with the transition
Externí odkaz:
http://arxiv.org/abs/2404.15922
Publikováno v:
Phys. Rev. A 105, 013714 (2022)
Shortcuts to adiabaticity are alternative fast processes which reproduce the same final state as the adiabatic process in a finite or even shorter time, which have been extended from Hermitian systems to non-Hermitian systems in recent years, but the
Externí odkaz:
http://arxiv.org/abs/2404.08202
Autor:
Jin, Zhu-yao, Jing, Jun
A stable and fast path linking arbitrary pair of quantum states is commonly desired for the engineering protocols inspired by stimulated Raman adiabatic passage, such as shortcut to adiabaticity and holonomic transformation. It has immediate applicat
Externí odkaz:
http://arxiv.org/abs/2406.16016
Autor:
Ferreira, J. L. Montenegro, França, Ângelo F. da Silva, Rosas, Alexandre, Bernardo, Bertúlio de Lima
Time-rescaling (TR) has been recently proposed as a method to engineer fast processes, also known as shortcuts to adiabaticity (STA), which enables the coherent control of quantum systems beyond the adiabatic regime [B. L. Bernardo, Phys. Rev. Res. 2
Externí odkaz:
http://arxiv.org/abs/2406.07433