Experimental preparation and manipulation of squeezed cat states via an all-optical in-line squeezer

• URL: http://arxiv.org/abs/2210.13758v1
• Date: Tue, 25 Oct 2022 03:58:21 GMT
• Title: Experimental preparation and manipulation of squeezed cat states via an all-optical in-line squeezer
• Authors: Meihong Wang, Miao Zhang, Zhongzhong Qin, Qiang Zhang, Li Zeng, Xiaolong Su, Changde Xie, and Kunchi Peng
• Abstract summary: A high-performance all-optical in-line squeezer is developed to prepare a squeezed cat state and manipulate the phase of the quadrature squeezing. The generation rate of squeezed cat states reaches 2 kHz, the same as that of the initial cat state.
• Score: 21.214288360269972
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The squeezed cat state, an essential quantum resource, can be used for quantum error correction and slowing decoherence of the optical cat state. However, preparing a squeezed cat state with high generation rate, and effectively manipulating it, remain challenging. In this work, a high-performance all-optical in-line squeezer is developed to prepare a squeezed cat state and manipulate the phase of the quadrature squeezing. This scheme has the advantages that the phase of the quadrature squeezing of the squeezed cat state can be manipulated by changing the working condition of the squeezer, and that a higher generation rate can be achieved via the deterministic squeezing operation of the in-line squeezer. The generation rate of squeezed cat states reaches 2 kHz, the same as that of the initial cat state. The all-optical in-line squeezer proposed here removes the requirements of electro-optic and opto-electric conversions necessary for an off-line squeezer, thus enabling high-bandwidth squeezing operations on non-Gaussian states. These results provide an efficient method to prepare and manipulate optical squeezed cat states, which makes a step closer to their applications in all-optical quantum information processing.

Related papers

• Catalytic and asymptotic equivalence for quantum entanglement [68.8204255655161]
  Many-copy entanglement manipulation procedures allow for highly entangled pure states from noisy states. We show that using an entangled catalyst cannot enhance the singlet distillation rate of a distillable quantum state. Our findings provide a comprehensive understanding of the capabilities and limitations of both catalytic and state transformations of entangled states.
  arXiv  Detail & Related papers  (2023-05-05T12:57:59Z)
• Remote preparation of optical cat states based on Gaussian entanglement [12.528753261720757]
  Remote state preparation enables one to prepare and manipulate quantum state non-locally. We present experimental preparation of optical cat states based on a remotely distributed two-mode Gaussian entangled state in a lossy channel.
  arXiv  Detail & Related papers  (2023-04-18T09:53:34Z)
• Method to deterministically generate large-amplitude optical cat states [1.146825766525396]
  Cat states are an important resource in the study of macroscopic quantum superposition and quantum information applications. We demonstrate that, by utilizing interaction-free measurement and the quantum Zeno effect, even a fragile quantum microscopic system can deterministically control and become entangled with strong light fields. We show that the preparation of cat states is possible even when the quantum microsystem suffers from significant photon loss.
  arXiv  Detail & Related papers  (2023-01-07T12:38:47Z)
• Experimental realization of deterministic and selective photon addition in a bosonic mode assisted by an ancillary qubit [50.591267188664666]
  Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss. Error correction requires a recovery operation that maps the error states -- which have opposite parity -- back onto the code states. Here, we realize a collection of photon-number-selective, simultaneous photon addition operations on a bosonic mode.
  arXiv  Detail & Related papers  (2022-12-22T23:32:21Z)
• Integrated Quantum Optical Phase Sensor [48.7576911714538]
  We present a photonic integrated circuit fabricated in thin-film lithium niobate. We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics. We anticipate that on-chip photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing.
  arXiv  Detail & Related papers  (2022-12-19T18:46:33Z)
• Protecting the quantum interference of cat states by phase-space compression [45.82374977939355]
  Cat states with their unique phase-space interference properties are ideal candidates for understanding quantum mechanics. They are highly susceptible to photon loss, which inevitably diminishes their quantum non-Gaussian features. Here, we protect these non-Gaussian features by compressing the phase-space distribution of a cat state.
  arXiv  Detail & Related papers  (2022-12-02T16:06:40Z)
• Amplification of cascaded downconversion by reusing photons with a switchable cavity [62.997667081978825]
  We propose a scheme to amplify triplet production rates by using a fast switch and a delay loop. Our proof-of-concept device increases the rate of detected photon triplets as predicted.
  arXiv  Detail & Related papers  (2022-09-23T15:53:44Z)
• Plug-&-play generation of non-Gaussian states of light at a telecom wavelength [48.7576911714538]
  This work marks an important progress towards practical quantum optical technologies in the continuous variable regime. Non-Gaussian state generation entirely relies on plug-&-play components from guided-wave optics technologies.
  arXiv  Detail & Related papers  (2022-05-31T11:08:08Z)
• Enhancing dissipative cat-state generation via nonequilibrium pump fields [1.902812229956905]
  Cat states have potential applications in quantum computation and quantum sensing. Dissipative cat-state generation is a common approach based on the nonlinear coupling between a lossy pump field and a half-frequency signal field. We show that the equilibrium requirement can be removed by leveraging a synchronous pump method.
  arXiv  Detail & Related papers  (2022-01-26T12:47:14Z)
• Fast generation of Cat states in Kerr nonlinear resonators via optimal adiabatic control [5.584146500383365]
  We propose a quantum speedup method for adiabatic creation of cat states in a Kerr nonlinear resonator. Our method can prepare the target state with much shorter time, as well as a high fidelity and a large non-classical volume.
  arXiv  Detail & Related papers  (2021-08-30T13:22:21Z)
• Overcoming decoherence of cat-states formed in a cavity using squeezed-state inputs [0.0]
  A cat-state is a superposition of two coherent states with amplitudes $alpha_0$ and $-alpha_0$. Recent experiments create cat states in a microwave cavity field using superconducting circuits. We show that the use of squeezed states significantly lengthens the lifetime of the cat states.
  arXiv  Detail & Related papers  (2020-06-23T03:44:58Z)

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.