Quantum communication with ultrafast time-bin qubits
- URL: http://arxiv.org/abs/2106.09833v1
- Date: Thu, 17 Jun 2021 22:08:08 GMT
- Title: Quantum communication with ultrafast time-bin qubits
- Authors: Fr\'ed\'eric Bouchard, Duncan England, Philip J. Bustard, Khabat
Heshami, and Benjamin Sussman
- Abstract summary: We experimentally demonstrate the feasibility of picosecond time-bin states of light, known as ultrafast time-bins, for applications in quantum communications.
With the ability to measure time-bin superpositions with excellent phase stability, we enable the use of temporal states in efficient quantum key distribution protocols.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The photonic temporal degree of freedom is one of the most promising
platforms for quantum communication over fiber networks and free-space
channels. In particular, time-bin states of photons are robust to environmental
disturbances, support high-rate communication, and can be used in
high-dimensional schemes. However, the detection of photonic time-bin states
remains a challenging task, particularly for the case of photons that are in a
superposition of different time-bins. Here, we experimentally demonstrate the
feasibility of picosecond time-bin states of light, known as ultrafast
time-bins, for applications in quantum communications. With the ability to
measure time-bin superpositions with excellent phase stability, we enable the
use of temporal states in efficient quantum key distribution protocols such as
the BB84 protocol.
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