Higher-Order Quantum Ghost Imaging with Ultracold Atoms

Hodgman, Sean; Bu, Wei; Mann, Sacha; Khakimov, Roman; Truscott, A. G.

doi:10.1103/physrevlett.122.233601

Cited by 27 publications

(14 citation statements)

References 41 publications

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“…Due to the underlying physics and potential applications in many fields, including lidar [12], tomography [13], and medical imaging [14][15][16], GI has attracted much attention in recent years [17][18][19][20][21][22]. It has also been extended to different domains with certain freedoms of correlation, including atomic domain [23,24], time domain [25][26][27], and spiral imaging [28,29].…”

Section: Introductionmentioning

confidence: 99%

“…Calculation of this algorithm is time-consuming and post-processed offline, antithetical to online or realtime computation. There have been many attempts to improve the imaging quality of GI, such as differential ghost imaging (DGI) [30,31], iterative ghost imaging [32,33], and higher-order ghost imaging [34,35]. However, few works attempted to reduce the memory required or the space complexity to implement online GI.…”

Section: Introductionmentioning

confidence: 99%

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Instant ghost imaging: algorithm and on-chip implementation

Yang¹,

Zhang²,

Liu³

et al. 2020

Opt. Express

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Ghost imaging (GI) is an imaging technique that uses the correlation between two light beams to reconstruct the image of an object. Conventional GI algorithms require large memory space to store the measured data and perform complicated offline calculations, limiting practical applications of GI. Here we develop an instant ghost imaging (IGI) technique with a differential algorithm and an implemented high-speed on-chip IGI hardware system. This algorithm uses the signal between consecutive temporal measurements to reduce the memory requirements without degradation of image quality compared with conventional GI algorithms. The on-chip IGI system can immediately reconstruct the image once the measurement finishes; there is no need to rely on post-processing or offline reconstruction. This system can be developed into a realtime imaging system. These features make IGI a faster, cheaper, and more compact alternative to a conventional GI system and make it viable for practical applications of GI.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Instant ghost imaging: algorithm and on-chip implementation

Yang¹,

Zhang²,

Liu³

et al. 2020

Opt. Express

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show abstract

“…Therefore, the current question is not the quantum nature of GI but rather if with the quantum illumination a new features can be observed. Finally, the recent demonstrations of imaging of Bell-type nonlocal behavior [33] and quantum GI utilizing higher order correlations [34] suggest a sparking interest in this topic, with our work bringing this issue of fundamental interest into a hybrid atom-photon system.…”

Section: Correlations Tremendous Efforts Have Been Putmentioning

confidence: 88%

Real-time ghost imaging of Bell-nonlocal entanglement between a photon and a quantum memory

Mazelanik

Leszczyński

Lipka

et al. 2021

Quantum

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Certification of nonlocality of quantum mechanics is an important fundamental test that typically requires prolonged data collection and is only revealed in an in-depth analysis. These features are often particularly exposed in hybrid systems, such as interfaces between light and atomic ensembles. Certification of entanglement from images acquired with single-photon camera can mitigate this issue by exploiting multiplexed photon generation. Here we demonstrate this feature in a quantum memory (QM) operating in a real-time feedback mode. Through spatially-multimode spin-wave storage the QM enables operation of the real-time ghost imaging (GI) protocol. By properly preparing the spatial phase of light emitted by the atoms we enable observation of Bell-type nonlocality from a single image acquired in the far field as witnessed by the Bell parameter of S=2.227±0.007>2. Our results are an important step towards fast and efficient utilization of multimode quantum memories both in protocols and in fundamental tests.

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“…GI is important in other applications [14,15] , such as lensless imaging [16,17] , 3D imaging [18] , lidar [19] , and encrypted communication [20] . There have been many important developments that have improved image quality as the use of GI has increased; examples are differential GI (DGI) [21] , iterative GI [22] , and higher-order GI [23] . The deterministic orthogonal basis scanning algorithms can perform high-quality imaging using the Hadamard basis or Fourier basis [24][25][26][27][28] .…”

Section: Introductionmentioning

confidence: 99%

Derivative ghost imaging

et al. 2022

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We propose a new experimentally verified ghost imaging (GI) mechanism, derivative GI. Our innovation is that we use the derivatives of the intensities of the test light and the reference light for imaging. Experimental results show that by combining derivative GI with the standard GI algorithm, multiple independent signals can be obtained in one measurement. This combination greatly reduces the number of measurements and the time required for data acquisition and imaging. Derivative GI intrinsically does not produce the storage-consuming background term of GI, so it is suitable for on-chip implementation and makes practical application of GI easier.

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Higher-Order Quantum Ghost Imaging with Ultracold Atoms

Cited by 27 publications

References 41 publications

Instant ghost imaging: algorithm and on-chip implementation

Instant ghost imaging: algorithm and on-chip implementation

Real-time ghost imaging of Bell-nonlocal entanglement between a photon and a quantum memory

Derivative ghost imaging

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