Low-light-level cross-phase modulation by quantum interference

Lo, Hsiang Yu; Su, Po Ching; Chen, Yong Fan

doi:10.1103/physreva.81.053829

Cited by 42 publications

(37 citation statements)

References 22 publications

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“…This effect plays a key role in modern quantum optics experiments and applications, such as enhanced nonlinear susceptibility [2], optical switch [3], slow and fast lights [4], quantum memory [5][6][7], quantum interference [8] and vibrational cooling [9]. Recently, the study of the EIT has been extended to multi-channels, e.g., the double EIT [10,11], and focused on simulation of other physical phenomena, including Anderson localization [12] and quasi-charged particles [13].…”

Section: Introductionmentioning

confidence: 99%

Precision measurement of the environmental temperature by tunable double optomechanically induced transparency with a squeezed field

et al. 2015

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A tunable double optomechanically induced transparency (OMIT) with a squeezed field is investigated in a system consisting of an optomechanical cavity coupled to a charged nanomechanical resonator via Coulomb interaction. Such a double OMIT can be achieved by adjusting the strength of the Coulomb interaction, and observed even with a single-photon squeezed field at finite temperature. Since it is robust against the cavity decay, but very sensitive to some parameters, such as the environmental temperature, the model under our consideration can be applied as a quantum thermometer for precision measurement of the environmental temperature within the reach of current techniques.

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Section: Introductionmentioning

confidence: 99%

Precision measurement of the environmental temperature by tunable double optomechanically induced transparency with a squeezed field

et al. 2015

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“…Although these interactions have been shown to preserve coherence [15][16][17] , they are generally performed using strong fields [18][19][20] . It is only recently that parametric effects such as cross-phase modulation 21,22 and spontaneous downconversion 23,24 have been observed with a single-photon level pump. We take the next step and realize a photon-photon interaction, which can enable some fascinating experiments.…”

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confidence: 99%

Interaction of independent single photons based on integrated nonlinear optics

et al. 2013

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The parametric interaction of light beams in nonlinear materials is usually thought to be too weak to be observed when the fields involved are at the single-photon level. However, such single-photon level nonlinearity is not only fundamentally fascinating but holds great potential for emerging technologies and applications involving heralding entanglement at a distance. Here we use a high-efficiency waveguide to demonstrate the sum-frequency generation between a single photon and a single-photon level coherent state. The use of an integrated, solid state, room temperature device and telecom wavelengths makes this type of system directly applicable to future quantum communication technologies such as device-independent quantum key distribution.

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“…In our scheme the control field not only induces transparency for the quantum probe pulse, but simultaneously imparts on the latter a phase shift at the level of few photons via the Kerr-type nonlinear interaction between the two fields. This is fundamentally different from most studies of cross-phase shifts of quantum light, which are based on N -type EIT medium [15,[24][25][26][27], where the Kerr interaction between the signal and probe fields is mediated by a strong classical field. The measurement of the phase shift induced by the control field on the single-photon probe pulse provides nondestructive detection of the number of control photons, thus enabling the quantum nondemolition measurement of the photon number [28] in the control beam.…”

Section: Discussionmentioning

confidence: 93%

Coherent-state-induced transparency

Gogyan¹,

Malakyan²

2016

Phys. Rev. A

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We examine electromagnetically induced transparency (EIT) in an ensemble of cold Λ−type atoms induced by a quantum control field in multi-mode coherent states and compare it with the transparency created by the classical light of the same intensity. We show that the perfect coincidence is achieved only in the case of a single-mode coherent state, whereas the transparency sharply decreases, when the number of the modes exceeds the mean number of control photons in the medium. The origin of the effect is the modification of photon statistics in the control field with increasing the number of the modes that weakens its interaction with atoms resulting in a strong probe absorption. For the same reason, the probe pulse transforms from EIT-based slow-light into superluminal propagation caused by the absorption.

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Low-light-level cross-phase modulation by quantum interference

Cited by 42 publications

References 22 publications

Precision measurement of the environmental temperature by tunable double optomechanically induced transparency with a squeezed field

Precision measurement of the environmental temperature by tunable double optomechanically induced transparency with a squeezed field

Interaction of independent single photons based on integrated nonlinear optics

Coherent-state-induced transparency

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