Quantum State Transfer Between Distant Optomechanical Interfaces via Shortcut to Adiabaticity

• URL: http://arxiv.org/abs/2111.00521v1
• Date: Sun, 31 Oct 2021 15:12:48 GMT
• Title: Quantum State Transfer Between Distant Optomechanical Interfaces via Shortcut to Adiabaticity
• Authors: Hanzhe Xi and Pei Pei
• Abstract summary: We propose a protocol to realize fast high-fidelity quantum state transfer between distant optomechanical interfaces connected by a continuum waveguide. The fidelity of this transfer scheme in the dissipative system mainly depends on the protocol speed and the coupling strength of the waveguide and cavities.
• Score: 0.32634122554913997
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a protocol to realize fast high-fidelity quantum state transfer between distant optomechanical interfaces connected by a continuum waveguide. The scheme consists of three steps: two accelerating adiabatic processes joined by a population conversion process. In comparison to the traditional adiabatic technique, our method reaches a higher transfer fidelity with a shorter time. Numerical results show that the fidelity of this transfer scheme in the dissipative system mainly depends on the protocol speed and the coupling strength of the waveguide and cavities. Assisted by inverting the pulse sequence, a bidirectional transfer can be implemented, indicating the potential to build a quantum network.

Related papers

• On-demand transposition across light-matter interaction regimes in bosonic cQED [69.65384453064829]
  Bosonic cQED employs the light field of high-Q superconducting cavities coupled to non-linear circuit elements. We present the first experiment to achieve fast switching of the interaction regime without deteriorating the cavity coherence. Our work opens up a new paradigm to probe the full range of light-matter interaction dynamics within a single platform.
  arXiv  Detail & Related papers  (2023-12-22T13:01:32Z)
• 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)
• Enhancing the Coherence of Superconducting Quantum Bits with Electric Fields [62.997667081978825]
  We show that qubit coherence can be improved by tuning defects away from the qubit resonance using an applied DC-electric field. We also discuss how local gate electrodes can be implemented in superconducting quantum processors to enable simultaneous in-situ coherence optimization of individual qubits.
  arXiv  Detail & Related papers  (2022-08-02T16:18:30Z)
• Accelerated Gaussian quantum state transfer between two remote mechanical resonators [0.0]
  We devise a fast and reliable evolution path between two remote mechanical modes in separate optomechanical systems. A quantum state transfer between the two nodes is conceived by engineering their coupling to an intermediate fiber optical channel. Results show that while the adiabatic passage protocol is very sensitive to the decoherence, the shortcut to adiabaticity provides a robust and fast quantum state transfer.
  arXiv  Detail & Related papers  (2022-05-17T06:41:26Z)
• Accelerated quantum adiabatic transfer in superconducting qubits [8.399741899540025]
  Quantum adiabatic transfer is widely used in quantum computation and quantum simulation. Here we demonstrate quantum adiabatic state transfers that jump along geodesics in one-qubit and two-qubit superconducting transmons.
  arXiv  Detail & Related papers  (2022-04-06T08:05:04Z)
• High fidelity two-qubit gates on fluxoniums using a tunable coupler [47.187609203210705]
  Superconducting fluxonium qubits provide a promising alternative to transmons on the path toward large-scale quantum computing. A major challenge for multi-qubit fluxonium devices is the experimental demonstration of a scalable crosstalk-free multi-qubit architecture. Here, we present a two-qubit fluxonium-based quantum processor with a tunable coupler element.
  arXiv  Detail & Related papers  (2022-03-30T13:44:52Z)
• Shortcuts to Adiabaticity for Fast Qubit Readout in Circuit Quantum Electrodynamics [5.122487534787007]
  We show how to engineer the longitudinal coupling to accelerate the measurement of a qubit longitudinally coupled to a cavity. By comparison, we demonstrate that our protocols outperform the usual periodic modulations on the pointer state separation and SNR.
  arXiv  Detail & Related papers  (2022-01-16T09:41:18Z)
• Robust stimulated Raman shortcut-to-adiabatic passage by invariant-based optimal control [5.290927777455239]
  We present a robust approach to speed up STIRAP with inversely invariant-based shortcut to adiabaticity. This technique has widely theoretical and experimental applications in many fields of physics, chemistry, and beyond. Results provide an optimal route toward manipulating the evolution of three-level quantum systems in future quantum information processing.
  arXiv  Detail & Related papers  (2021-03-02T00:56:15Z)
• Waveguide quantum optomechanics: parity-time phase transitions in ultrastrong coupling regime [125.99533416395765]
  We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction. The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry. The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
  arXiv  Detail & Related papers  (2020-07-04T11:02:20Z)
• Universal non-adiabatic control of small-gap superconducting qubits [47.187609203210705]
  We introduce a superconducting composite qubit formed from two capacitively coupled transmon qubits. We control this low-frequency CQB using solely baseband pulses, non-adiabatic transitions, and coherent Landau-Zener interference. This work demonstrates that universal non-adiabatic control of low-frequency qubits is feasible using solely baseband pulses.
  arXiv  Detail & Related papers  (2020-03-29T22:48:34Z)
• Fast and efficient deterministic quantum state transfer between two remote mechanical resonators [0.0]
  We show that one obtains a quantum state transfer with high efficiency using adiabatic variation of the effective coupling strengths. Our results show that the shortcut to adiabaticity provides an efficient and fast quantum state transfer even for small values of the coupling strength.
  arXiv  Detail & Related papers  (2020-03-02T20:18:54Z)

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.