CANCELLED – STP, DIAS Statutory Public Lecture – Monday 30 March 2020
Title: Dream & Realization of Quantum Communication
Speaker: Prof Pan Jianwei (University of Science & Technology of China)
Abstract: Quantum information science and technology are emerging and fascinating technologies formed by combining coherent manipulating of individual quantum systems and information technology, which enables secure quantum cryptography (quantum communication), super-fast quantum computing (quantum computation), and improving measurement precision (quantum metrology) etc., to beat classical limits.
For fundamental aspect, one is led to the conception of quantum entanglement. The appeared ‘spooky action at a distance’ phenomena referred by Einstein, is often explained by seemingly reasonable assumptions of “local realism”. The inequalities proposed by John Bell and others provide immediate tests for correctness of quantum mechanics. Many efforts are addressing loophole-free tests of Bell inequalities, which tries to close various loopholes, in which some of loopholes are still needed to be addressed including freedom of choice loophole, the collapse locality loophole. Well, the final test is on-going, many developed ground-breaking technologies for coherent manipulation of quantum systems offers elegant and feasible solutions for satisfying increasing needs of computational power and information security.
Based on state-of-the-art fiber technology and rich fiber resources, we have managed to achieve prevailing quantum communication with realistic devices in real-life situation. This constitutes demonstrations by developing decoy state scheme over 100km firer, extending its employment in the metropolitan area network, as well as maintaining Measurement Device Independent QKD (MDI-QKD) over 400km. At the meantime, we are also developing practically useful quantum repeaters that combine entanglement swapping, entanglement purification, efficient and long-lived quantum memory for the ultra-long distance quantum communication. Another complementing route is to attain global quantum communication based on satellite. We have spent the past decade in performing systematic ground tests for satellite-based quantum communications. Our efforts finally ensure a successful launch of the Micius satellite. Three major scientific missions have been finished, which includes achieving QKD between satellite and ground station at thousand kilometer scale, achieving satellite-based entanglement distribution between two ground stations separated by a distance of 1200 km, achieving quantum teleportation from ground to satellite over 1400 km. Very recently, using Micius satellite as a trustful relay, the intercontinental QKD between Beijing and Vienna over a distance of 7600 km has also been realized.
Future Prospects include building a global quantum communication infrastructure with satellite and fiber networks, enormous spatial resolution and global precise timing information sharing networks with applications for the global quantum communication network, ultra-precise optical clocks in outer space to detect gravitational wave signal with lower frequency, and Bell-test experiment with human-observer at a distance on the order of one light-second.
Time: Monday, 30th March 2020, 6.30pm
Location: Thomas Prior Hall, Merrion Road, Ballsbridge, Dublin 4
STP, DIAS Weekly Seminar: 'Non-Hermiticity: A New Paradigm for Model Building in Particle Physics' with Peter Millington (University of Nottingham) can be viewed here 👇
youtube.com/watch?v=0wRwcS…
Was a pleasure to welcome an Tánaiste to DIAS & Dunsink Observatory today.
We're delighted he has an interest in the educational, research as well as recreational possibilities Dunsink offers.
We look forward to working with him on these in the future.
#DIASdiscoverstwitter.com/LeoVaradkar/st…Retweeted by
STP, DIAS
STP, DIAS Weekly Seminar: 'High-Order Topological States in Electronic & Photonic Lattice Systems' with Dario Bercioux (Donostia International Physics Center) can be viewed here 👇
youtube.com/watch?v=CD-rCb…
New paper published in Physical Review D by authors
Ygor Pará, Giandomenico Palumbo (DIAS), & Tommaso Macrì - 'Probing non-Hermitian Phase Transitions in Curved Space via Quench Dynamics'
journals.aps.org/prb/abstract/1…Retweeted by
STP, DIAS
New paper published in Physical Review D by authors
Ygor Pará, Giandomenico Palumbo (DIAS), & Tommaso Macrì - 'Probing non-Hermitian Phase Transitions in Curved Space via Quench Dynamics'
journals.aps.org/prb/abstract/1…
STP, DIAS Weekly Seminar: 'The Complex Elliptic Genera of Simple Surface Singularities' with Katrin Wendland (Universität Freiburg) can be viewed here
👇
youtube.com/watch?v=HEpoNj…
John T. Lewis was born on this day in 1932. From January 1975 Professor Lewis took over the Directorship of STP, DIAS - a position he would hold for 25 years.
He's pictured 👇 with Lochlainn O'Raifeartaigh & Reverend Patrick Browne (Monsignor Pádraig de Brún)
Mainz Institute for Theoretical Physics, Johannes Gutenberg University - 12-23 April 2021
Gravity and Emergent Gauge Fields in Condensed and Synthetic Matter
indico.mitp.uni-mainz.de/event/228/
Happy World Quantum Day!
From DIAS’ own Erwin Schrodinger – one of the founding figures of quantum physics – to current research into quantum theory and its applications, DIAS is proud to celebrate over 80 years of quantum research.
DIAS STP Weekly Seminar: 'The Swampland and String Universality' with Miguel Montero (Harvard University) can be viewed here 👇
youtube.com/watch?v=kZv8Nl…
STP, DIAS Paper -
Can gravity be thought of as two gauge fields?
Check out ``Gauge × Gauge = Gravity on Homogeneous Spaces using Tensor Convolutions'' - By I. Jubb (DIAS) L. Borsten, V. Makwana, & S. Nagy (Heriot-Watt, Edinburgh & Queen Mary's, London). arxiv.org/abs/2104.01135
DIAS STP Weekly Seminar: Mithat Ünsal from North Carolina State University discusses non-invertible symmetries and string tensions beyond N-ality in semi-Abelian gauge theories. Catch it here:
youtube.com/watch?v=qI4Ekk…
As part of the DIAS Summer Studentships programme the School of Theoretical Physics of the Dublin Institute for Advanced Studies is delighted to be in a position to offer at least 4 Summer Studentships.
dias.ie/positions/inde…
STP, DIAS : Celebrating Synge Week - 23-30 March
Day 6: Synge was appointed Professor Emeritus in 1972. After his retirement he remained active for a long time and maintained very strong links with the Institute, coming in regularly for discussions, in particular with J.T. Lewis.
STP, DIAS : Celebrating Synge Week - 23-30 March 2021.
Day Five - Synge’s main lines of work were in general relativity and classical physics, but he also worked on various other topics including the hypercircle method in function space.
STP, DIAS : Celebrating Synge Week - 23-30 March 2021.
Day Four - Synge presented Eamon de Valera with signed first editions of Relativity: The Special Theory (1956) & Relativity: The General Theory (1960). Both are housed in the de Valera Collection in the STP Library Retweeted by
STP, DIAS
STP, DIAS : Celebrating Synge Week - 23-30 March 2021.
Day Four - Synge presented Eamon de Valera with signed first editions of Relativity: The Special Theory (1956) & Relativity: The General Theory (1960). Both are housed in the de Valera Collection in the STP Library
DIAS STP Weekly Seminar: Andrea Cappelli from INFN Florence discusses the conformal invariance and electric-magnetic self-duality of the surface of a topological insulator. Catch it here:
youtube.com/watch?v=X7nfBA…Retweeted by
STP, DIAS
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Last Updated: 2nd May 2020 by George Rogers
CANCELLED – STP, DIAS Statutory Public Lecture – Monday 30 March 2020
Title: Dream & Realization of Quantum Communication
Speaker: Prof Pan Jianwei (University of Science & Technology of China)
Abstract: Quantum information science and technology are emerging and fascinating technologies formed by combining coherent manipulating of individual quantum systems and information technology, which enables secure quantum cryptography (quantum communication), super-fast quantum computing (quantum computation), and improving measurement precision (quantum metrology) etc., to beat classical limits.
For fundamental aspect, one is led to the conception of quantum entanglement. The appeared ‘spooky action at a distance’ phenomena referred by Einstein, is often explained by seemingly reasonable assumptions of “local realism”. The inequalities proposed by John Bell and others provide immediate tests for correctness of quantum mechanics. Many efforts are addressing loophole-free tests of Bell inequalities, which tries to close various loopholes, in which some of loopholes are still needed to be addressed including freedom of choice loophole, the collapse locality loophole. Well, the final test is on-going, many developed ground-breaking technologies for coherent manipulation of quantum systems offers elegant and feasible solutions for satisfying increasing needs of computational power and information security.
Based on state-of-the-art fiber technology and rich fiber resources, we have managed to achieve prevailing quantum communication with realistic devices in real-life situation. This constitutes demonstrations by developing decoy state scheme over 100km firer, extending its employment in the metropolitan area network, as well as maintaining Measurement Device Independent QKD (MDI-QKD) over 400km. At the meantime, we are also developing practically useful quantum repeaters that combine entanglement swapping, entanglement purification, efficient and long-lived quantum memory for the ultra-long distance quantum communication. Another complementing route is to attain global quantum communication based on satellite. We have spent the past decade in performing systematic ground tests for satellite-based quantum communications. Our efforts finally ensure a successful launch of the Micius satellite. Three major scientific missions have been finished, which includes achieving QKD between satellite and ground station at thousand kilometer scale, achieving satellite-based entanglement distribution between two ground stations separated by a distance of 1200 km, achieving quantum teleportation from ground to satellite over 1400 km. Very recently, using Micius satellite as a trustful relay, the intercontinental QKD between Beijing and Vienna over a distance of 7600 km has also been realized.
Future Prospects include building a global quantum communication infrastructure with satellite and fiber networks, enormous spatial resolution and global precise timing information sharing networks with applications for the global quantum communication network, ultra-precise optical clocks in outer space to detect gravitational wave signal with lower frequency, and Bell-test experiment with human-observer at a distance on the order of one light-second.
Time: Monday, 30th March 2020, 6.30pm
Location: Thomas Prior Hall, Merrion Road, Ballsbridge, Dublin 4
Tickets: Eventbrite
Category: Major Event, News, School of Theoretical Physics News & Events, Statutory Lectures
School of Theoretical Physics
STP, DIAS Weekly Seminar: 'Non-Hermiticity: A New Paradigm for Model Building in Particle Physics' with Peter Millington (University of Nottingham) can be viewed here 👇 youtube.com/watch?v=0wRwcS…
Was a pleasure to welcome an Tánaiste to DIAS & Dunsink Observatory today. We're delighted he has an interest in the educational, research as well as recreational possibilities Dunsink offers. We look forward to working with him on these in the future. #DIASdiscovers twitter.com/LeoVaradkar/st… Retweeted by STP, DIAS
STP, DIAS Weekly Seminar: 'High-Order Topological States in Electronic & Photonic Lattice Systems' with Dario Bercioux (Donostia International Physics Center) can be viewed here 👇 youtube.com/watch?v=CD-rCb…
New paper published in Physical Review D by authors Ygor Pará, Giandomenico Palumbo (DIAS), & Tommaso Macrì - 'Probing non-Hermitian Phase Transitions in Curved Space via Quench Dynamics' journals.aps.org/prb/abstract/1… Retweeted by STP, DIAS
New paper published in Physical Review D by authors Ygor Pará, Giandomenico Palumbo (DIAS), & Tommaso Macrì - 'Probing non-Hermitian Phase Transitions in Curved Space via Quench Dynamics' journals.aps.org/prb/abstract/1…
STP, DIAS Weekly Seminar: 'The Complex Elliptic Genera of Simple Surface Singularities' with Katrin Wendland (Universität Freiburg) can be viewed here 👇 youtube.com/watch?v=HEpoNj…
John T. Lewis was born on this day in 1932. From January 1975 Professor Lewis took over the Directorship of STP, DIAS - a position he would hold for 25 years. He's pictured 👇 with Lochlainn O'Raifeartaigh & Reverend Patrick Browne (Monsignor Pádraig de Brún)
Mainz Institute for Theoretical Physics, Johannes Gutenberg University - 12-23 April 2021 Gravity and Emergent Gauge Fields in Condensed and Synthetic Matter indico.mitp.uni-mainz.de/event/228/
Happy World Quantum Day! From DIAS’ own Erwin Schrodinger – one of the founding figures of quantum physics – to current research into quantum theory and its applications, DIAS is proud to celebrate over 80 years of quantum research.
DIAS STP Weekly Seminar: 'The Swampland and String Universality' with Miguel Montero (Harvard University) can be viewed here 👇 youtube.com/watch?v=kZv8Nl…
The DIAS School of Theoretical Physics are pleased to announce the publication of "Gauge × Gauge = Gravity on Homogeneous Spaces using Tensor Convolutions" #DIASdiscovers #theoretical #physics #gravity #gauge #highenergy twitter.com/StpDias/status… Retweeted by STP, DIAS
I guess you noticed who signed this one? @CardColm @StpDias @DIAS_Dublin twitter.com/aliiicv/status… Retweeted by STP, DIAS
STP, DIAS Paper - Can gravity be thought of as two gauge fields? Check out ``Gauge × Gauge = Gravity on Homogeneous Spaces using Tensor Convolutions'' - By I. Jubb (DIAS) L. Borsten, V. Makwana, & S. Nagy (Heriot-Watt, Edinburgh & Queen Mary's, London). arxiv.org/abs/2104.01135
DIAS STP Weekly Seminar: Mithat Ünsal from North Carolina State University discusses non-invertible symmetries and string tensions beyond N-ality in semi-Abelian gauge theories. Catch it here: youtube.com/watch?v=qI4Ekk…
As part of the DIAS Summer Studentships programme the School of Theoretical Physics of the Dublin Institute for Advanced Studies is delighted to be in a position to offer at least 4 Summer Studentships. dias.ie/positions/inde…
STP, DIAS : Celebrating Synge Week - 23-30 March Day 6: Synge was appointed Professor Emeritus in 1972. After his retirement he remained active for a long time and maintained very strong links with the Institute, coming in regularly for discussions, in particular with J.T. Lewis.
STP, DIAS : Celebrating Synge Week - 23-30 March 2021. Day Five - Synge’s main lines of work were in general relativity and classical physics, but he also worked on various other topics including the hypercircle method in function space.
STP, DIAS : Celebrating Synge Week - 23-30 March 2021. Day Four - Synge presented Eamon de Valera with signed first editions of Relativity: The Special Theory (1956) & Relativity: The General Theory (1960). Both are housed in the de Valera Collection in the STP Library Retweeted by STP, DIAS
STP, DIAS : Celebrating Synge Week - 23-30 March 2021. Day Four - Synge presented Eamon de Valera with signed first editions of Relativity: The Special Theory (1956) & Relativity: The General Theory (1960). Both are housed in the de Valera Collection in the STP Library
DIAS STP Weekly Seminar: Andrea Cappelli from INFN Florence discusses the conformal invariance and electric-magnetic self-duality of the surface of a topological insulator. Catch it here: youtube.com/watch?v=X7nfBA… Retweeted by STP, DIAS