Unconditional and robust quantum metrological advantage beyond NOON
states
- URL: http://arxiv.org/abs/2302.00940v1
- Date: Thu, 2 Feb 2023 08:30:06 GMT
- Title: Unconditional and robust quantum metrological advantage beyond NOON
states
- Authors: Jian Qin, Yu-Hao Deng, Han-Sen Zhong, Li-Chao Peng, Hao Su, Yi-Han
Luo, Jia-Min Xu, Dian Wu, Si-Qiu Gong, Hua-Liang Liu, Hui Wang, Ming-Cheng
Chen, Li Li, Nai-Le Liu, Chao-Yang Lu, Jian-Wei Pan
- Abstract summary: We propose and realize a new scheme that achieves a scalable, unconditional, and robust quantum metrological advantage.
We observe a 5.8(1)-fold enhancement above the shot-noise limit in the Fisher information extracted per photon, without discounting for photon loss and imperfections.
- Score: 15.647495855339967
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum metrology employs quantum resources to enhance the measurement
sensitivity beyond that can be achieved classically. While multi-photon
entangled NOON states can in principle beat the shot-noise limit and reach the
Heisenberg limit, high NOON states are difficult to prepare and fragile to
photon loss which hinders it from reaching unconditional quantum metrological
advantages. Here, we combine the idea of unconventional nonlinear
interferometers and stimulated emission of squeezed light, previously developed
for photonic quantum computer Jiuzhang, to propose and realize a new scheme
that achieves a scalable, unconditional, and robust quantum metrological
advantage. We observe a 5.8(1)-fold enhancement above the shot-noise limit in
the Fisher information extracted per photon, without discounting for photon
loss and imperfections, which outperforms ideal 5-NOON states. The
Heisenberg-limited scaling, the robustness to external photon loss, and the
ease-to-use of our method make it applicable in practical quantum metrology at
low photon flux regime.
Related papers
- Persistent quantum advantage with definite photon-number states in lossy multiple-phase estimation [4.233978022468851]
We propose an optimal multiple-phase estimation scheme that is inherently robust against photon loss.
We theoretically demonstrate that the DPN state can sustain quantum enhancement in estimation precision under all levels of photon loss.
arXiv Detail & Related papers (2024-07-23T07:34:33Z) - Heisenberg-limited quantum metrology using 100-photon Fock states [11.376914882465812]
We develop a programmable photon number filter that efficiently generates Fock states with up to 100 photons in a high-quality superconducting microwave cavity.
We demonstrate a precision scaling close to the Heisenberg limit and achieve a maximum metrological gain of up to 14.8 dB.
arXiv Detail & Related papers (2023-06-29T13:12:26Z) - All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in
Diamond [52.77024349608834]
Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors.
We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing.
Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
arXiv Detail & Related papers (2022-12-14T08:34:11Z) - 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) - Enhanced nonlinear quantum metrology with weakly coupled solitons and
particle losses [58.720142291102135]
We offer an interferometric procedure for phase parameters estimation at the Heisenberg (up to 1/N) and super-Heisenberg scaling levels.
The heart of our setup is the novel soliton Josephson Junction (SJJ) system providing the formation of the quantum probe.
We illustrate that such states are close to the optimal ones even with moderate losses.
arXiv Detail & Related papers (2021-08-07T09:29:23Z) - Topologically Protecting Squeezed Light on a Photonic Chip [58.71663911863411]
Integrated photonics offers an elegant way to increase the nonlinearity by confining light strictly inside the waveguide.
We experimentally demonstrate the topologically protected nonlinear process of spontaneous four-wave mixing enabling the generation of squeezed light on a silica chip.
arXiv Detail & Related papers (2021-06-14T13:39:46Z) - Conditional preparation of non-Gaussian quantum optical states by
mesoscopic measurement [62.997667081978825]
Non-Gaussian states of an optical field are important as a proposed resource in quantum information applications.
We propose a novel approach involving displacement of the ancilla field into the regime where mesoscopic detectors can be used.
We conclude that states with strong Wigner negativity can be prepared at high rates by this technique under experimentally attainable conditions.
arXiv Detail & Related papers (2021-03-29T16:59:18Z) - Scalable multiphoton quantum metrology with neither pre- nor
post-selected measurements [0.0]
We experimentally demonstrate a scalable protocol for quantum-enhanced optical phase estimation.
The robustness of two-mode squeezed vacuum states against loss allows us to outperform schemes based on N00N states.
Our work is important for quantum technologies that rely on multiphoton interference.
arXiv Detail & Related papers (2020-11-04T18:11:33Z) - Optical repumping of resonantly excited quantum emitters in hexagonal
boron nitride [52.77024349608834]
We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN)
Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
arXiv Detail & Related papers (2020-09-11T10:15:22Z) - Non-Markovian effect on quantum optical metrology under dissipative
environment [1.6058099298620423]
Non-Markovian effects are shown to be effective in performing quantum optical metrology under locally dissipative environments.
Our work provides a recipe to realize ultrasensitive measurements in the presence of noise by utilizing non-Markovian effects.
arXiv Detail & Related papers (2020-02-09T14:50:54Z)
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.