Entangled quantum systems are typically analysed via coincidence correlation methods. For that purpose, the photons emitted by the systems are split using, e.g., a 50 / 50 beamsplitter or a polarization splitter and send onto two single photon sensitive detectors. The output of these detectors is then fed into a time tagging unit with high temporal resolution that allows not only to detect coincidences in a certain time window but obtain the full second or higher oder correlations.
PicoQuant offers several instruments such as time-tagging units and single photon sensitive detectors that can be used to study photon entanglement:
High-Throughput Multichannel Event Timer & TCSPC Unit
- 4, 8, or 16 independent input channels and common sync channel (up to 1.2 GHz)
- High sustained data throughput (80 Mcps in time tagging mode, 180 Mcps in histogramming mode)
- Record-breaking dead time (650 ps) per channel
- No dead time across channels
Multichannel Picosecond Event Timer
- Up to 8 independent input channels and common synch channel (up to 150 MHz)
- Time channel width of 1 ps
- Time tagging with sustained count rates up to 40 Mcps
- USB 3.0 connection
Compact Dual-Channel Picosecond Event Timer
- Two identical synchronized but independent input channels
- Time channel width of 4 ps
- Time tagging with sustained count rates up to 5 Mcps
- USB 2.0 connection
Dead-time Free Coincidence Correlation
- One or two independent input channels and common synch channel (up to 84 MHz)
- Two models with either 25 ps (PICO model) or 1 ns (NANO model) base resolution
- Ultra short dead time (< 25 ns for PICO model, < 1 ns for NANO model)
- PCIe interface
Single Photon Avalanche Diodes
- Timing resolution down to < 50 ps (FWHM)
- Detection efficiency up to 49%
- Different active areas: 20, 50, and 100 µm
- Ultra stable at high count rates
Quantum Correlation Analysis Software
- Antibunching (g(2)) measurements including fitting to several models
- Coincidence counting / event filtering, using AND, OR, NOT operators
- Preview of antibunching curve and correlation data during measurement
- Remote control via TCP/IP Interface
Latest 10 publications related to Quantum Entanglement
The following list is an extract of 10 recent publications from our bibliography that either bear reference or are releated to this application and our products in some way. Do you miss your publication? If yes, we will be happy to include it in our bibliography. Please send an e-mail to info@picoquant.com containing the appropriate citation. Thank you very much in advance for your kind co-operation.