Quantum LiDAR with Frequency Modulated Continuous Wave
- URL: http://arxiv.org/abs/2307.11590v1
- Date: Fri, 21 Jul 2023 13:54:13 GMT
- Title: Quantum LiDAR with Frequency Modulated Continuous Wave
- Authors: Ming-Da Huang, Zhan-Feng Jiang, Hong-Yi Chen, Ying Zuo, Xiao-Peng Hu,
Hai-Dong Yuan, Li-Jian Zhang, Qi Qin
- Abstract summary: Entangled pulsed light is used in prior quantum LiDAR approaches to assess both range and velocity at the same time.
Here, we study a quantum LiDAR that operates on a frequency-modulated continuous wave (FMCW) as opposed to pulses.
- Score: 3.7393580877367047
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The range and speed of a moving object can be ascertained using the sensing
technique known as light detection and ranging (LiDAR). It has recently been
suggested that quantum LiDAR, which uses entangled states of light, can enhance
the capabilities of LiDAR. Entangled pulsed light is used in prior quantum
LiDAR approaches to assess both range and velocity at the same time using the
pulses' time of flight and Doppler shift. The entangled pulsed light generation
and detection, which are crucial for pulsed quantum LiDAR, are often
inefficient. Here, we study a quantum LiDAR that operates on a
frequency-modulated continuous wave (FMCW), as opposed to pulses. We first
outline the design of the quantum FMCW LiDAR using entangled
frequency-modulated photons in a Mach-Zehnder interferometer, and we
demonstrate how it can increase accuracy and resolution for range and velocity
measurements by $\sqrt{n}$ and $n$, respectively, with $n$ entangled photons.
We also demonstrate that quantum FMCW LiDAR may perform simultaneous
measurements of the range and velocity without the need for quantum pulsed
compression, which is necessary in pulsed quantum LiDAR. Since the generation
of entangled photons is the only inefficient nonlinear optical process needed,
the quantum FMCW LiDAR is better suited for practical implementations.
Additionally, most measurements in the quantum FMCW LiDAR can be carried out
electronically by down-converting optical signal to microwave region.
Related papers
- Efficiently catching entangled microwave photons from a quantum transducer with shaped optical pumps [0.0]
Quantum transducer provides a practical way of coherently connecting optical communication channels and microwave quantum processors.
Recent experiments on quantum transducer verifying entanglement between microwave and optical photons show the promise of approaching that goal.
To efficiently capture or detect a single microwave photon with arbitrary time profile remains challenging.
arXiv Detail & Related papers (2024-09-09T23:31:15Z) - Quantum Target Ranging for LiDAR [0.0]
We investigate Quantum Target Ranging in the context of multi-hypothesis testing and its applicability to real-world LiDAR systems.
We demonstrate that ranging is generally an easier task compared to the well-studied problem of target detection.
We then analyze the theoretical bounds and advantages of quantum ranging in the context of phase-insensitive measurements.
arXiv Detail & Related papers (2024-08-05T17:00:14Z) - Optimal Control of Spin Qudits Subject to Decoherence Using Amplitude-and-Frequency-Constrained Pulses [44.99833362998488]
We introduce a formulation that allows us to bound the maximum amplitude and frequency of the signals.
The pulses we obtain consistently enhance operation fidelities compared to those achieved with Schr"odinger's equation.
arXiv Detail & Related papers (2024-03-23T10:10:38Z) - Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry [45.73541813564926]
We study the interplay of the quantum center-of-mass $-$ that can become delocalized $-$ together with the internal clock transitions.
We show at the example of a Gaussian laser beam that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields.
arXiv Detail & Related papers (2023-09-25T18:00:03Z) - Compact All-Fiber Quantum-Inspired LiDAR with > 100dB Noise Rejection
and Single Photon Sensitivity [6.07319870953345]
Entanglement and correlation of quantum light can enhance LiDAR sensitivity in the presence of strong background noise.
We develop and demonstrate a quantum-inspired LiDAR prototype based on coherent measurement of classical time-frequency correlations.
arXiv Detail & Related papers (2023-07-31T23:23:47Z) - Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols.
We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
arXiv Detail & Related papers (2023-04-24T15:43:08Z) - Frequency-tunable microwave quantum light source based on
superconducting quantum circuits [6.7579902550023245]
A non-classical light source is essential for implementing a wide range of quantum information processing protocols.
In the microwave regime, propagating photonic qubits serve as building blocks of large-scale quantum computers.
Here we demonstrate a microwave quantum light source based on superconducting quantum circuits that can generate propagating single photons.
arXiv Detail & Related papers (2023-04-12T13:21:40Z) - 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) - Slowing down light in a qubit metamaterial [98.00295925462214]
superconducting circuits in the microwave domain still lack such devices.
We demonstrate slowing down electromagnetic waves in a superconducting metamaterial composed of eight qubits coupled to a common waveguide.
Our findings demonstrate high flexibility of superconducting circuits to realize custom band structures.
arXiv Detail & Related papers (2022-02-14T20:55:10Z) - Spectral control of nonclassical light using an integrated thin-film
lithium niobate modulator [5.119503410288866]
We demonstrate frequency shifting and bandwidth compression of nonclassical light using an integrated thin-film lithium niobate (TFLN) phase modulator.
We achieve record-high electro-optic frequency shearing of telecom single photons over terahertz range.
Our results showcase the viability and promise of on-chip quantum spectral control for scalable photonic quantum information processing.
arXiv Detail & Related papers (2021-12-18T16:38:00Z) - Generating Spatially Entangled Itinerant Photons with Waveguide Quantum
Electrodynamics [43.53795072498062]
In this work, we demonstrate the deterministic generation of such photons using superconducting transmon qubits that are directly coupled to a waveguide.
We generate two-photon N00N states and show that the state and spatial entanglement of the emitted photons are tunable via the qubit frequencies.
arXiv Detail & Related papers (2020-03-16T16:03:27Z)
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.