Details
| Original language | English |
|---|---|
| Title of host publication | 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) |
| Subtitle of host publication | Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Number of pages | 1 |
| ISBN (electronic) | 978-1-7281-0469-0 |
| ISBN (print) | 9781728104690 |
| Publication status | Published - Jun 2019 |
| Externally published | Yes |
| Event | European Quantum Electronics Conference, EQEC_2019 - Munich, United Kingdom (UK) Duration: 23 Jun 2019 → 27 Jun 2019 |
Abstract
Time is a practical and robust degree of freedom for the encoding of quantum information. Qubits encoded in so-called 'time-bins', allowing a discrete superposition of two potential arrival times, have their entanglement preserved even over long propagation distances in standard fiber networks [1]. Time has also been used for the preparation of more complex quantum systems, such as hyper-entangled and cluster states [2]. These qualities put time-bin encoding at the center of applications ranging from quantum state preparation through to quantum communications and information processing. One of the hallmarks of the scheme is that a nonlinear element has to be pumped with phase-coherent double-pulses, which can be achieved by using unbalanced interferometers [1], making their phase stability the key determinant of both state generation and analysis accuracy. However, the phase ambiguity arising from the periodicity of feedback signals [3], as well as the difficulty of stabilizing on interference maxima/minima, leave progress to be made in fiber-based interferometry for time-bin encodings.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Engineering(all)
- Mechanics of Materials
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2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC): Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. 2019-eb_p_31.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Removing phase ambiguity in fiber-based interferometers for coherent time-bin operations
AU - Roztocki, Piotr
AU - Islam, Mehedi
AU - Reimer, Christian
AU - Fischer, Bennet
AU - Sciara, Stefania
AU - Zhang, Yanbing
AU - Moss, David J.
AU - Kues, Michael
AU - Morandotti, Roberto
PY - 2019/6
Y1 - 2019/6
N2 - Time is a practical and robust degree of freedom for the encoding of quantum information. Qubits encoded in so-called 'time-bins', allowing a discrete superposition of two potential arrival times, have their entanglement preserved even over long propagation distances in standard fiber networks [1]. Time has also been used for the preparation of more complex quantum systems, such as hyper-entangled and cluster states [2]. These qualities put time-bin encoding at the center of applications ranging from quantum state preparation through to quantum communications and information processing. One of the hallmarks of the scheme is that a nonlinear element has to be pumped with phase-coherent double-pulses, which can be achieved by using unbalanced interferometers [1], making their phase stability the key determinant of both state generation and analysis accuracy. However, the phase ambiguity arising from the periodicity of feedback signals [3], as well as the difficulty of stabilizing on interference maxima/minima, leave progress to be made in fiber-based interferometry for time-bin encodings.
AB - Time is a practical and robust degree of freedom for the encoding of quantum information. Qubits encoded in so-called 'time-bins', allowing a discrete superposition of two potential arrival times, have their entanglement preserved even over long propagation distances in standard fiber networks [1]. Time has also been used for the preparation of more complex quantum systems, such as hyper-entangled and cluster states [2]. These qualities put time-bin encoding at the center of applications ranging from quantum state preparation through to quantum communications and information processing. One of the hallmarks of the scheme is that a nonlinear element has to be pumped with phase-coherent double-pulses, which can be achieved by using unbalanced interferometers [1], making their phase stability the key determinant of both state generation and analysis accuracy. However, the phase ambiguity arising from the periodicity of feedback signals [3], as well as the difficulty of stabilizing on interference maxima/minima, leave progress to be made in fiber-based interferometry for time-bin encodings.
UR - http://www.scopus.com/inward/record.url?scp=85084616087&partnerID=8YFLogxK
U2 - 10.1109/CLEOE-EQEC.2019.8872195
DO - 10.1109/CLEOE-EQEC.2019.8872195
M3 - Conference contribution
SN - 9781728104690
BT - 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - European Quantum Electronics Conference, EQEC_2019
Y2 - 23 June 2019 through 27 June 2019
ER -