The Problem of No Return Photon Ranging Measurements with Entangled Photons
- URL: http://arxiv.org/abs/2504.20394v1
- Date: Tue, 29 Apr 2025 03:35:20 GMT
- Title: The Problem of No Return Photon Ranging Measurements with Entangled Photons
- Authors: Mohit Khurana,
- Abstract summary: We introduce a fascinating problem of light detection and ranging measurement without necessitating the return of the photon directed towards the target or object.<n>One photon is sent toward the target or object, while the other is directed into a medium, which undergoes continuous measurements.<n>We assume the light-matter interaction at the target such that the quantum state collapse is probabilistically biased.<n>We present thought experiments and measurement schemes to conduct correlation measurements and examine the methodology of these measurements to estimate the target's range.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We introduce a fascinating problem of light detection and ranging measurement without necessitating the return of the photon directed towards the target or object. We approach this challenging problem using quantum entanglement - an entangled pair of photons; one photon is sent toward the target or object, while the other is directed into a medium, which undergoes continuous measurements. We assume the light-matter interaction at the target such that the quantum state collapse is probabilistically biased. We present thought experiments and measurement schemes to conduct correlation measurements and examine the methodology of these measurements to estimate the target's range, using a maximally entangled Bell state ($|\Psi^+\rangle = \frac{1}{\sqrt{2}} (|H_1V_2\rangle + |V_1H_2\rangle)$) as an example. When the photon interacts with the target, the Bell state undergoes biased decoherence or state collapse, leaving a signature in the spatial correlation G(x) quantity.
Related papers
- Complete Measurement of Two-Photon Density Matrix by Single-Photon Detection [0.0]
We present an approach to quantum state tomography that circumvents the requirement of detecting both photons.<n>A practical challenge in quantum state measurement arises from the fact that effective single-photon detectors are not readily accessible for a wide spectral range.
arXiv Detail & Related papers (2025-03-11T03:00:01Z) - Geometric Antibunching and Directional Shaping of Photon Anticorrelations [44.99833362998488]
We find a new mechanism for photon anticorrelation, termed as geometric antibunching.
This phenomenon is completely agnostic to the quantum state of the emitters.
arXiv Detail & Related papers (2024-10-23T14:29:15Z) - Measuring the Evolution of Entanglement in Compton Scattering [101.11630543545151]
The behavior of quantum entanglement during scattering is identical to the behavior of initially classically correlated photons up to a constant factor equal to two.
Our dedicated experiment with photons confirms these results and explains the "Puzzle of Decoherence" observed recently.
arXiv Detail & Related papers (2024-06-20T14:21:23Z) - Atomic diffraction from single-photon transitions in gravity and
Standard-Model extensions [49.26431084736478]
We study single-photon transitions, both magnetically-induced and direct ones, in gravity and Standard-Model extensions.
We take into account relativistic effects like the coupling of internal to center-of-mass degrees of freedom, induced by the mass defect.
arXiv Detail & Related papers (2023-09-05T08:51:42Z) - Relation between quantum illumination and quantum parameter estimation [7.261893691836341]
We show that signal-to-noise ratio and quantum Fisher information are equivalent to Quantum Illumination (QI) in the limit of zero object reflectivity.
We further demonstrate this equivalence by investigating QI protocols employing non-Gaussian states, which are obtained by de-Gaussifying the two-mode squeezed vacuum state with photon addition and photon subtraction.
arXiv Detail & Related papers (2023-08-14T13:57:53Z) - Interferometric phase estimation and quantum resources dynamics in Bell
coherent-states superpositions generated via a unitary beam splitter [0.0]
We propose a scheme to generate Bell coherent-states superpositions through the action of a beam splitter.
Different quantifiers are used to measure the quantumness in the output state.
arXiv Detail & Related papers (2023-06-05T08:46:39Z) - Entanglement of annihilation photons [141.5628276096321]
We present the results of a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest.
Despite numerous measurements, there is still no experimental proof of the entanglement of photons.
arXiv Detail & Related papers (2022-10-14T08:21:55Z) - Un-symmetric photon subtraction: a method for generating high photon
number states and their relevance to loss estimation at ultimate quantum
limit [0.0]
We have studied theoretical un-symmetric multi-photon subtracted twin beam state and demonstrated a method for generating states that resembles to high photon number states.
A crucial point is high non-classicality is obtained by photon subtraction when mean photons per mode of twin beam state is low.
arXiv Detail & Related papers (2021-10-03T23:28:47Z) - Photon-mediated Stroboscopic Quantum Simulation of a $\mathbb{Z}_{2}$
Lattice Gauge Theory [58.720142291102135]
Quantum simulation of lattice gauge theories (LGTs) aims at tackling non-perturbative particle and condensed matter physics.
One of the current challenges is to go beyond 1+1 dimensions, where four-body (plaquette) interactions, not contained naturally in quantum simulating devices, appear.
We show how to prepare the ground state and measure Wilson loops using state-of-the-art techniques in atomic physics.
arXiv Detail & Related papers (2021-07-27T18:10:08Z) - Light-matter interactions near photonic Weyl points [68.8204255655161]
Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point.
We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
arXiv Detail & Related papers (2020-12-23T18:51:13Z) - Quantum correlations between the light and kilogram-mass mirrors of LIGO [3.8821562099592706]
We experimentally prove the theoretical prediction that this type of quantum correlation is naturally produced in the Laser Interferometer Gravitational-wave Observatory (LIGO)
Our measurements show that the quantum mechanical uncertainties in the phases of the 200 kW laser beams and in the positions of the 40 kg mirrors yield a joint quantum uncertainty a factor of 1.4 (3dB) below the standard quantum limit.
We anticipate that quantum correlations will not only improve gravitational wave (GW) but all types of measurements in future.
arXiv Detail & Related papers (2020-02-04T19:52:32Z)
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.