Details
| Original language | English |
|---|---|
| Title of host publication | 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference |
| Subtitle of host publication | CLEO/Europe-EQEC 2021 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (electronic) | 9781665418768 |
| ISBN (print) | 9781665448048 |
| Publication status | Published - 2021 |
| Event | Conference on Lasers and Electro-Optics Europe (CLEO EUROPE) - München, Germany Duration: 21 Jun 2021 → 25 Jun 2021 |
Abstract
Temporal/spectral waveshapes of photons involved in gate operation are absolutely crucial for the gate operation. In particular, if we consider linear logic approaches [1] the photons in different channels should be un-correlated and indistinguishable [2] , [3]. The waveshape is also important for so called coherent photon conversion (CPC) proposed in [4]. It uses four wave mixing (FWM) between single-photons in presence of a strong coherent field. For instance, two photons in the distinct modes which we call here signal s and idler i (see Fig. 1a ) can be converted into a pump p photon and then back, demonstrating Rabi-like oscillations; after each oscillation, the phase of the wavepacket is shifted by π , leading to a nonlinear sign (NS) gate functionality. However, since only time-coincident ( t i = t s ) parts of the two-photon wavepacket interact, almost any waveshape leads to a non-ideal gate operation [5]. This problem was elegantly solved in [6] where the signal and idler are assumed to propagate through each other with nonzero velocity (see Fig. 1a ), and interaction of independent photons was demonstrated.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference: CLEO/Europe-EQEC 2021. Institute of Electrical and Electronics Engineers Inc., 2021.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Towards waveshape-insensitive flying qubit gates
AU - Babushkin, I.
AU - Morgner, U.
AU - Demircan, A.
PY - 2021
Y1 - 2021
N2 - Temporal/spectral waveshapes of photons involved in gate operation are absolutely crucial for the gate operation. In particular, if we consider linear logic approaches [1] the photons in different channels should be un-correlated and indistinguishable [2] , [3]. The waveshape is also important for so called coherent photon conversion (CPC) proposed in [4]. It uses four wave mixing (FWM) between single-photons in presence of a strong coherent field. For instance, two photons in the distinct modes which we call here signal s and idler i (see Fig. 1a ) can be converted into a pump p photon and then back, demonstrating Rabi-like oscillations; after each oscillation, the phase of the wavepacket is shifted by π , leading to a nonlinear sign (NS) gate functionality. However, since only time-coincident ( t i = t s ) parts of the two-photon wavepacket interact, almost any waveshape leads to a non-ideal gate operation [5]. This problem was elegantly solved in [6] where the signal and idler are assumed to propagate through each other with nonzero velocity (see Fig. 1a ), and interaction of independent photons was demonstrated.
AB - Temporal/spectral waveshapes of photons involved in gate operation are absolutely crucial for the gate operation. In particular, if we consider linear logic approaches [1] the photons in different channels should be un-correlated and indistinguishable [2] , [3]. The waveshape is also important for so called coherent photon conversion (CPC) proposed in [4]. It uses four wave mixing (FWM) between single-photons in presence of a strong coherent field. For instance, two photons in the distinct modes which we call here signal s and idler i (see Fig. 1a ) can be converted into a pump p photon and then back, demonstrating Rabi-like oscillations; after each oscillation, the phase of the wavepacket is shifted by π , leading to a nonlinear sign (NS) gate functionality. However, since only time-coincident ( t i = t s ) parts of the two-photon wavepacket interact, almost any waveshape leads to a non-ideal gate operation [5]. This problem was elegantly solved in [6] where the signal and idler are assumed to propagate through each other with nonzero velocity (see Fig. 1a ), and interaction of independent photons was demonstrated.
UR - http://www.scopus.com/inward/record.url?scp=85117612678&partnerID=8YFLogxK
U2 - 10.1109/CLEO/Europe-EQEC52157.2021.9542122
DO - 10.1109/CLEO/Europe-EQEC52157.2021.9542122
M3 - Conference contribution
AN - SCOPUS:85117612678
SN - 9781665448048
BT - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Conference on Lasers and Electro-Optics Europe (CLEO EUROPE)
Y2 - 21 June 2021 through 25 June 2021
ER -