Quantum state tomography of slow and stored light

Dawes, Andrew M. C.; Holte, Noah T.; Dassonville, Hunter A.

doi:10.1117/12.2010474

Cited by 2 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 Our implementation of this scheme is particularly well-suited to measuring the quantum state of multimode light near 795 nm. Therefore, this technique is being applied to measure the quantum state of light after recovery from a stored-light system.…”

Section: Resultsmentioning

confidence: 99%

Multimode quantum state tomography of slow light in rubidium vapor

2014

Self Cite

View full text Add to dashboard Cite

Slow and stopped light systems form an important piece of the photonics puzzle by acting as memory devices. When used with few-photon light levels, these devices are fundamental to applications in quantum information science, quantum computing, and quantum communication. We report on our progress implementing a technique 1 for measuring the quantum state of light that has been stored in a warm-vapor slow-light system. This technique does not require careful mode matching can in fact be used to optimize the measured field mode without a prior knowledge of the stored light.

show abstract

Section: Resultsmentioning

confidence: 99%

Multimode quantum state tomography of slow light in rubidium vapor

2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…This function has a peak value at k = k S and is therefore separate from the classical noise at k = 0. Just as Beck et al [9] eliminate classical LO noise by temporally separating the signal and LO fields, we eliminate classical LO noise by separating the LO and signal fields by their propagation direction-they have different transverse components of their propagation wave vector [10].…”

mentioning

confidence: 99%

Multimode quantum state tomography using unbalanced array detection

et al. 2014

Self Cite

View full text Add to dashboard Cite

We measure the joint Q-function of a multi-spatial-mode field using a charge-coupled device array detector in an unbalanced heterodyne configuration. The intensity pattern formed by interference between a weak signal field and a strong local oscillator is resolved using Fourier analysis and used to reconstruct quadrature amplitude statistics for 22 spatial modes simultaneously. The local oscillator and signal propagate at an angle of 12 mrad thus shifting the classical noise to modes that do not overlap with the signal. In this configuration, balanced detection is not necessary.

show abstract

Quantum state tomography of slow and stored light

Cited by 2 publications

References 28 publications

Multimode quantum state tomography of slow light in rubidium vapor

Multimode quantum state tomography of slow light in rubidium vapor

Multimode quantum state tomography using unbalanced array detection

Contact Info

Product

Resources

About