Quantum-enhanced joint estimation of phase and phase diffusion
- URL: http://arxiv.org/abs/2403.04722v1
- Date: Thu, 7 Mar 2024 18:18:34 GMT
- Title: Quantum-enhanced joint estimation of phase and phase diffusion
- Authors: Jayanth Jayakumar, Monika E. Mycroft, Marco Barbieri, Magdalena
Stobi\'nska
- Abstract summary: We investigate the joint estimation of phase and phase diffusion using generalized Holland-Burnett states.
We find that the highest sensitivities are obtained by using states created by directing all input photons into one port of a balanced beam splitter.
- Score: 0.25602836891933073
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Accurate phase estimation in the presence of unknown phase diffusive noise is
a crucial yet challenging task in noisy quantum metrology. This problem is
particularly interesting due to the detrimental impact of the associated noise.
Here, we investigate the joint estimation of phase and phase diffusion using
generalized Holland-Burnett states, known for their experimental accessibility.
These states provide performance close to the optimal state in single-parameter
phase estimation, even in the presence of photon losses. We adopt a twofold
approach by analyzing the joint information extraction through the double
homodyne measurement and the joint information availability across all probe
states. Through our analysis, we find that the highest sensitivities are
obtained by using states created by directing all input photons into one port
of a balanced beam splitter. Furthermore, we infer that good levels of
sensitivity persist even in the presence of moderate photon losses,
illustrating the remarkable resilience of our probe states under lossy
conditions.
Related papers
- Phase estimation via coherent and photon-catalyzed squeezed vacuum states [7.289718191016964]
We propose a scheme to input the coherent state mixed with photoncatalyzed squeezed vacuum state into the Mach-Zender interferometer.
The phase measurement accuracy can exceed the standard quantum limit, and even surpass the Heisenberg limit.
arXiv Detail & Related papers (2024-03-23T08:26:04Z) - Quantum advantage of time-reversed ancilla-based metrology of absorption
parameters [2.5499055723658097]
We consider the important problem of estimation of transmission of light by a sample, with losses due to absorption and scattering.
We show, through the determination of the quantum Fisher information, that the ancilla strategy leads to the best possible precision in single-mode estimation.
arXiv Detail & Related papers (2023-10-09T20:41:53Z) - Dissipative stabilization of maximal entanglement between non-identical
emitters via two-photon excitation [49.1574468325115]
Two non-identical quantum emitters, when placed within a cavity and coherently excited at the two-photon resonance, can reach stationary states of nearly maximal entanglement.
We show that this mechanism is merely one among a complex family of phenomena that can generate both stationary and metastable entanglement when driving the emitters at the two-photon resonance.
arXiv Detail & Related papers (2023-06-09T16:49:55Z) - Simultaneous quantum estimation of phase and indistinguishability in a
two photon interferometer [0.0]
We derive the quantum Fisher information matrix associated to the simultaneous estimation of an interferometric phase.
We perform an experiment based on a pair of photons with an unknown degree of indistinguishability entering a two-port interferometer.
arXiv Detail & Related papers (2023-03-27T18:56:03Z) - Phase estimation of Mach-Zehnder interferometer via Laguerre excitation
squeezed state [7.488329113191202]
We introduce a kind of non-Gaussian state, Laguerre squeezed excitation state as input of traditional Mach-Zehnder interferometer.
We consider the effects of both internal and external losses on phase estimation by using quantum Fisher information and parity detection.
arXiv Detail & Related papers (2022-09-01T10:14:43Z) - Experimentally determining the incompatibility of two qubit measurements [55.41644538483948]
We describe and realize an experimental procedure for assessing the incompatibility of two qubit measurements.
We demonstrate this fact in an optical setup, where the qubit states are encoded into the photons' polarization degrees of freedom.
arXiv Detail & Related papers (2021-12-15T19:01:44Z) - Deterministic quantum phase estimation beyond the ideal NOON state limit [0.0]
We develop a new type of phase estimation scheme based on a deterministic source of Gaussian squeezed vacuum states and high-efficiency homodyne detection.
Using a high-efficiency setup with a total loss of about 11% we achieve a Fisher Information of 15.8(6) rad2 per photon unparalleled by any other optical phase estimation technology.
The work represents a fundamental achievement in quantum metrology, and it opens the door to future quantum sensing technologies for the interrogation of light-sensitive biological systems.
arXiv Detail & Related papers (2021-11-18T15:37:13Z) - Remote Phase Sensing by Coherent Single Photon Addition [58.720142291102135]
We propose a remote phase sensing scheme inspired by the high sensitivity of the entanglement produced by coherent multimode photon addition on the phase set in the remote heralding apparatus.
We derive the optimal observable to perform remote phase estimation from heralded quadrature measurements.
arXiv Detail & Related papers (2021-08-26T14:52:29Z) - 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) - Two-photon resonance fluorescence of two interacting non-identical
quantum emitters [77.34726150561087]
We study a system of two interacting, non-indentical quantum emitters driven by a coherent field.
We show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters.
This can be exploited for applications such as superresolution imaging of point-like sources.
arXiv Detail & Related papers (2021-06-04T16:13:01Z) - Observing coherences with time-resolved photoemission [77.34726150561087]
We discuss the potential creation and measurement of coherences in both dispersive solids and qubit-like single levels using current generation time- and angle-resolved photoemission technology.
We show that in both cases, when both the pump and the probe overlap energetically with the coherent levels, that the time-resolved photoemission signal shows a beating pattern at the energy difference between the levels.
In the case of dispersive bands, this leads to momentum-dependent oscillations, which may be used to map out small energy scales in the band structure.
arXiv Detail & Related papers (2020-05-18T18:00:02Z)
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.