Perfect stimulated Raman adiabatic passage with imperfect finite-time pulses

• URL: http://arxiv.org/abs/2204.05271v2
• Date: Tue, 4 Jul 2023 09:48:46 GMT
• Title: Perfect stimulated Raman adiabatic passage with imperfect finite-time pulses
• Authors: Shruti Dogra and Gheorghe Sorin Paraoanu
• Abstract summary: We present a well-tailored sequence of two Gaussian-pulsed drives that achieves perfect population transfer in STImulated Raman Adiabatic Passage (STIRAP) Subject to optimal truncation of the drives and with reference to the point of fastest transfer, we obtain a new adiabaticity criteria, which is remarkably simple and effective.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present a well-tailored sequence of two Gaussian-pulsed drives that achieves perfect population transfer in STImulated Raman Adiabatic Passage (STIRAP). We give a theoretical analysis of the optimal truncation and relative placement of the Stokes and pump pulses. Further, we obtain the power and the duration of the protocol for a given pulse width. Importantly, the duration of the protocol required to attain a desired value of fidelity depends only logarithmically on the infidelity. Subject to optimal truncation of the drives and with reference to the point of fastest transfer, we obtain a new adiabaticity criteria, which is remarkably simple and effective.

Related papers

• Stochastic Approximation with Delayed Updates: Finite-Time Rates under Markovian Sampling [73.5602474095954]
  We study the non-asymptotic performance of approximation schemes with delayed updates under Markovian sampling. Our theoretical findings shed light on the finite-time effects of delays for a broad class of algorithms.
  arXiv  Detail & Related papers  (2024-02-19T03:08:02Z)
• Fast storage of photons in cavity-assisted quantum memories [0.0]
  Ideal quantum memories can store arbitrary pulses of light with unit efficiency. This requires operating in the adiabatic regime, where pulses have a duration much longer than the bandwidth of the memory. We identify an effective strategy for optimizing the efficiencies of the storage and retrieval process regardless of the duration of the pulses.
  arXiv  Detail & Related papers  (2024-01-30T19:20:29Z)
• Enhancing Dispersive Readout of Superconducting Qubits Through Dynamic Control of the Dispersive Shift: Experiment and Theory [47.00474212574662]
  A superconducting qubit is coupled to a large-bandwidth readout resonator. We show a beyond-state-of-the-art two-state-readout error of only 0.25,%$ in 100 ns integration time. The presented results are expected to further boost the performance of new and existing algorithms and protocols.
  arXiv  Detail & Related papers  (2023-07-15T10:30:10Z)
• Pulse-controlled qubit in semiconductor double quantum dots [57.916342809977785]
  We present a numerically-optimized multipulse framework for the quantum control of a single-electron charge qubit. A novel control scheme manipulates the qubit adiabatically, while also retaining high speed and ability to perform a general single-qubit rotation.
  arXiv  Detail & Related papers  (2023-03-08T19:00:02Z)
• Optimal shortcuts of Stimulated Raman Adiabatic Passage in the presence of dissipation [0.0]
  We use optimal control theory to obtain shortcuts to adiabaticity in a three-level STIRAP system. We fix the sum of the intensities of the pump and Stokes pulses and use the mixing angle as the sole control variable.
  arXiv  Detail & Related papers  (2022-12-26T17:35:08Z)
• Fast adiabatic control of an optomechanical cavity [62.997667081978825]
  We present a shortcut to adiabaticity for the control of an optomechanical cavity with two moving mirrors. We find analytical expressions that give us effective trajectories which implement a STA for the quantum field inside the cavity.
  arXiv  Detail & Related papers  (2022-11-09T15:32:28Z)
• Robust quantum control by smooth quasi-square pulses [3.8580539160777625]
  We analyze fast adiabatic dynamics that preserve robustness by using alternative smooth quasi-square pulses. We consider the two protocols, robust inverse optimization and time-contracted adiabatic passage.
  arXiv  Detail & Related papers  (2022-09-25T18:39:31Z)
• Optimal robust stimulated Raman exact passage by inverse optimization [0.0]
  Control fields temporal shapes that are optimal with respect to pulse area, energy, and duration are found to form a simple sequence. Alternative optimal solutions featuring lower losses, larger pulse areas, and fully counter-intuitive pulse sequences are derived.
  arXiv  Detail & Related papers  (2022-09-15T22:19:04Z)
• Fast and differentiable simulation of driven quantum systems [58.720142291102135]
  We introduce a semi-analytic method based on the Dyson expansion that allows us to time-evolve driven quantum systems much faster than standard numerical methods. We show results of the optimization of a two-qubit gate using transmon qubits in the circuit QED architecture.
  arXiv  Detail & Related papers  (2020-12-16T21:43:38Z)
• Performance of superadiabatic stimulated Raman adiabatic passage in the presence of dissipation and Ornstein-Uhlenbeck dephasing [0.0]
  We evaluate the performance of two superadiabatic stimulated Raman adiabatic passage (STIRAP) protocols. We find that for small amplitudes of Stokes and pump pulses, the population transfer is mainly achieved directly through the counterdiabatic pulse. We conclude that the Gaussian protocol with suitably chosen delay and the sin-cos protocol perform quite well even under severe noise conditions.
  arXiv  Detail & Related papers  (2020-08-27T07:58:09Z)
• Hessian-Free High-Resolution Nesterov Acceleration for Sampling [55.498092486970364]
  Nesterov's Accelerated Gradient (NAG) for optimization has better performance than its continuous time limit (noiseless kinetic Langevin) when a finite step-size is employed. This work explores the sampling counterpart of this phenonemon and proposes a diffusion process, whose discretizations can yield accelerated gradient-based MCMC methods.
  arXiv  Detail & Related papers  (2020-06-16T15:07:37Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.