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News on Quantum physics

Qubits put into reverse

30 November 2017

A group of scientists at the Niels Bohr Institute, University of Copenhagen, has figured out how to make spin qubits perform controlled backward rotations. This has never been shown before.

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Eugene Polzik receives DKK 10 million for fundamental research and innovation in quantum optics

20 November 2017

QUANTOP at the Niels Bohr Institute has attracted DKK 10 million funding from two funding agencies, the John Templeton Foundation (USA) and EUREKA – the European framework targeting cooperation between SMEs and research centers.

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New ’building material’ points toward quantum computers

02 October 2017

A Danish-American research team has shown that it is possible to produce ‘Majorana particles’ in a new ‘building material’. The research, led by scientists from Niels Bohr institute, paves the road for new types of experiments.

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Smart atomic cloud solves Heisenberg's observation problem

13 July 2017

One of the most fundamental principles of physics, "Quantum Back Action", has been challenged by researchers from the Niels Bohr Institute, which has used laser light to link a vibrating membrane with cesium atoms.

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Iron secrets behind superconductors unlocked

07 July 2017

Due to magnetism iron should - theoretically - be a poor superconductor. Nevertheless certain ironbased materials possess fine superconducting properties. Why? Because the five unbound electrons found in iron...

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Holey pattern boosts coherence of nanomechanical membrane vibrations

12 June 2017

Researchers at the Niels Bohr Institute have introduced a new type of nanomechanical resonator, in which a pattern of holes localizes vibrations to a small region in a 30 nm thick membrane.

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Søren Stobbe awarded the 2017 SCIENCE Business Prize

24 May 2017

38-year-old Associate Professor Søren Stobbe of the University of Copenhagen’s Niels Bohr Institute has been awarded  the 2017 SCIENCE Business Prize by the University of Copenhagen’s Faculty of Science. Søren Stobbe received the award for successfully conducting commercially-oriented research while inspiring his students to do the same. Likewise, 35-year-old Assistant Professor Mads Fiil Hjorth of the Department of Nutrition, Exercise and Sports and 35-year-old Postdoc Svend Roesen Madsen of the Department of Plant and Environmental Sciences received the Business Prize for Young Researchers. They received their awards for conducting research in commercial contexts while inspiring others.  The 2017 SCIENCE Business Prize is worth 75,000 Danish kroner – the largest sum for a UCPH award, while the two business-minded younger researchers shared the second prize, each being awarded 37,500 kroner towards their future work.

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Huge grant to quantum research

19 April 2017

Danish National Research Foundation is willing to donate up to 62 million kroner to a new research centre at the Niels Bohr Institute. The new Centre of Excellence will be named Hybrid Quantum Networks (Hy – Q).

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First step towards photonic quantum network

25 January 2017

First step towards photonic quantum networkResearchers from the Niels Bohr Institute have now developed the first building blocks needed to construct complex quantum photonic circuits for quantum networks. This rapid development in quantum networks

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The Sound of Quantum Vacuum

21 December 2016

Quantum mechanics dictates sensitivity limits in the measurements of displacement, velocity and acceleration. A recent experiment at NBI probes these limits, analyzing how quantum fluctuations set a sensor membrane

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University of Copenhagen partners with Microsoft to develop topological quantum computer

28 November 2016

Professor Charles Marcus will build the world's first topological quantum computer at the Niels Bohr Institute in collaboration with the Technical University of Delft and Sydney University under a Microsoft...

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Quantum technology boosted by 20 million kroner from the Ministry of Science

06 October 2016

Quantum technology boosted by 20 million kroner from the Ministry of ScienceDanish Agency for Science, Technology and Innovation has awarded 20 million kroner to a new centre, QUANTECH, which will build up a research infrastructure comprised of a facility with a number of instruments for producing...

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Effective reflection of light for quantum technology

23 September 2016

Effective reflection of light for quantum technologyResearchers at the Niels Bohr Institute have developed a new method where they create a very strong interaction between light and atoms, which means that the light can be controlled and reflected on a glass fiber.

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Eugene Polzik on the steering committee for EU quantum technology flagship

13 September 2016

Eugene Polzik on the steering committee for EU quantum technology flagshipThe EU will launch a €1 billion innovative quantum technology project. In order to develop a program of research, a steering committee of senior researchers and business people has been established. From Denmark, Professor Eugene Polzik...

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Optical magnetic field sensor can detect signals from the nervous system

15 July 2016

The human body is controlled by electrical impulses in, for example, the brain, the heart and nervous system. These electrical signals create tiny magnetic fields, which can be used to diagnose various diseases. 

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Jan W. Thomsen receives the award Teacher of the Year, SCIENCE 2016

22 June 2016

“Jan W. Thomsen captivates the physics students when he takes them into the world of quantum optics and with his great enthusiasm and energetic demeanour he manages to create a learning atmosphere where students can strengthen their...

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Albert Schliesser appointed professor of optical quantum physics

06 June 2016

Albert Schliesser is a young top researcher who received his PhD in 2009 and now – only seven years later, has been appointed professor.  Albert Schliesser works with quantum physics at the Niels Bohr Institute at the University of Copenhagen.

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Quantum photonic researchers start new company, Sparrow Quantum

27 May 2016

Researchers in the research group Quantum Photonics at the Niels Bohr Institute have formed a new company, Sparrow Quantum, which will produce photonic chips that could be used for quantum technology based on light.

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Jan Thomsen in a new EU project on ultra-precise atomic clocks

02 May 2016

Jan Thomsen in a new EU project on ultra-precise atomic clocks  Jan Thomsen, Associate Professor and head of the Ultracold Atoms research group at the Niels Bohr Institute is part of a grant of 14 million kroner to participate in an EU project to develop ultra-precise atomic clocks that will define international

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Superfast light source made from artificial atom

26 April 2016

New research results from the Niels Bohr Institute show that light sources can be made much faster by using a principle that was predicted theoretically in 1954. Superfast light sources can be used, for example, in laser lights, LED...

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Massive investment: From theoretical quantum physics to usable quantum technology

07 April 2016

In a major new effort to translate quantum physics into practical quantum technology, the Innovation Fund Denmark has therefore invested 80 million kroner in a nationwide project involving three universities.

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Protected Majorana states for quantum information

09 March 2016

Quantum technology has the potential to revolutionize computation, cryptography, and simulation of quantum systems. However: quantum states are fragile, and so must be controlled without being measured. 

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Physicist Peter Lodahl receives prestigious EliteForsk Award

25 February 2016

Peter Lodahl, professor of quantum physics at the Niels Bohr Institute at the University of Copenhagen has received the prestigious Danish elite researcher award, the EliteForsk Award 2016. Peter Lodahl works with experimental quantum physics

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Mark Rudner receives ERC grant of nearly 12 million kroner

25 November 2015

Mark Rudner receives ERC grant of nearly 12 million kroner Mark Rudner, associate professor in Condensed Matter Physics at the Niels Bohr Institute at the University of Copenhagen, has received a grant from the European Research Council, an ERC Starting Grant of 1.5 million Euro.

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Photons open the gateway for quantum networks

23 October 2015

Photons open the gateway for quantum networksThere is tremendous potential for new information technology based on light (photons), and quantum technology based on photons – called quantum photonics, will be able to hold much more information than current computer technology.

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Eugene Polzik receives ERC grant

18 September 2015

Eugene Polzik, professor and head of the Center for Quantum Optics, Quantop at the Niels Bohr Institute at the University of Copenhagen has received a grant of nearly 1.2 million kroner (150,000 Euro) from the European Research Council, ERC for...

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Quantum networks: Back and forth are not equal distances!

27 July 2015

Quantum networks: Back and forth are not equal distances! Researchers from the Niels Bohr Institute have discovered a new type of photonic channels, where back and forth are not equal distances! Such a system has been a missing component for building quantum photonic circuits on a large

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Peter Lodahl receives prestigious ERC Advanced Grant

12 May 2015

Peter Lodahl receives prestigious ERC Advanced GrantPeter Lodahl, professor and head of the Quantum Photonics research group at the Niels Bohr Institute, has received a large and prestigious grant from the European Research Council, the ERC Advanced Grant.

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Super sensitive measurement of magnetic fields in swinging atoms

30 March 2015

Super sensitive measurement of magnetic fieldsThere are electrical signals in the nervous system, the brain and throughout the human body and there are tiny magnetic fields associated with these signals that could be important for medical science.

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Quantum link between QDev in Denmark and QuTech in Holland

17 March 2015

Quantum link between QDev in Denmark and QuTech in HollandThe Center for Quantum Devices, QDev at the Niels Bohr Institute at the University of Copenhagen and QuTech at Delft University of Technology in Holland have therefore entered into an international partnership in the research

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Quantum mechanic frequency filter for atomic clocks

06 March 2015

Quantum mechanic frequency filter for atomic clocks In an atomic clock, electrons jumping from one orbit to another decides the clock’s frequency. To get the electrons to jump, researchers shine light on the atoms using stabilised laser light. However, the laser light has to have a very

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Jan W. Thomsen receives annual teaching award at NBI

30 January 2015

Jan W. Thomsen receives annual teaching award at NBI“For more than five years, Jan Thomsen has captivated class after class as he takes students on a journey into the world of optics,” reads the justification from the students for recommending Jan Thomsen for the Niels Bohr Institute’s award for teacher of the year

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New superconducting hybrid crystals developed at the University of Copenhagen

12 January 2015

New superconducting hybrid crystals developed at the University of Copenhagen  A new type of ‘nanowire’ crystals that fuses semiconducting and metallic materials on the atomic scale could lay the foundation for future semiconducting electronics. Researchers at the University of Copenhagen are behind

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Atoms queue up for quantum computer networks

24 December 2014

Atoms queue up for quantum computer networksIn order to develop future quantum computer networks, it is necessary to hold a known number of atoms. To do this, researchers from NBI have developed a method with a trap that captures the atoms along an ultra thin glass fiber

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ERC grants for two researchers at the Niels Bohr Institute

18 December 2014

Two researchers from NBI, Albert Schliesser, Assistant Professor in Quantum Optics and Oliver Gressel, Assistant Professor in Astrophysics and Planetary Science has received grants totalling more than 21 million kroner from the European Research Council

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Eugene Polzik receives Danish Association of Masters and PhDs’ Research Award

19 November 2014

Eugene Polzik receives Danish Association of Masters and PhDs’ Research Award Eugene Polzik, professor and head of the research group Quantop at the Niels Bohr Institute has received the 2014 Danish Association of Masters and PhDs’ Research Award for Science and Technology. 
 

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Charles Marcus receives American research prize

15 October 2014

Charles Marcus receives American research prize Charles Marcus, who is a professor and head of the Center for Quantum Devices at NBI has been awarded the prize for ’Research Excellence in Nanotechnology’ by the nanoscience centre, NBIC at the University of Pennsylvania, USA.

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Breakthrough in light sources for new quantum technology

29 August 2014

Future quantum circuits are photonic circuits, i.e. circuits based on light (photons) instead of electrons. Now scientists at the Niels Bohr Institute have succeeded in creating a steady stream of photons emitted one at a time and in a

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Brian Møller Andersen receives 1.2 million kr. for research into superconductors

08 August 2014

Brian Møller Andersen receives 1.2 million kr. for research into superconductors  Brian Møller Andersen has received a grant of 1.2 million kr. from the Villum Foundation for the research project ‘Unconventional superconductors’.
 

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Unavoidable disorder used to build nanolaser

23 March 2014

Unavoidable disorder used to build nanolaser Researchers at NBI have discovered that imperfect nanostructures can offer entirely new functionalities. They have shown that imperfect optical chips can be used to produce ‘nanolasers’, which is an ultimately compact and

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Ultra sensitive detection of radio waves with lasers

05 March 2014

Ultra sensitive detection of radio waves with lasers When detecting radio waves ‘noise’ in the instrument limits how sensitive and precise the measurements can be. Now researchers at the Niels Bohr Institute have developed a new method where they can avoid noise by means of

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10.8 million kroner for research into quantum information technology

16 January 2014

Two researchers, Mark Rudner and Michael J. Kastoryano from the Niels Bohr Institute, have received support from the VILLUM FOUNDATION’s Young Investigator Programme for research into quantum information technology.

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Eugene Polzik’s research chosen as the year’s best by Ingeniøren

03 January 2014

Ingeniøren (The Engineer) has chosen Eugene Polzik’s research on teleporation as the year’s most important Danish research results in science. Eugene Polzik is the head of the research group Quantop at the Niels Bohr Institute

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Decay used to construct quantum information

24 November 2013

Usually, when researchers work with quantum information, they do everything they can to prevent the information from decaying. Now researchers at NBI have flipped things around and are exploiting the decay to create the...

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Quantum communication controlled by resonance in ‘artificial atoms’

06 August 2013

Researchers at NBI among others have developed a method to control a quantum bit for electronic quantum communication in a series of quantum dots, which behave like artificial atoms in the solid state

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Quantum teleportation between atomic systems over long distances

06 June 2013

The research group Quantum Optics at NBI has succeeded in teleporting information between two clouds of gas atoms and to carry out the teleportation – not just one or a few times, but successfully every single time

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The paths of photons are random – but coordinated

20 December 2012

Researchers at the Niels Bohr Institute have demonstrated that photons (light particles) emitted from light sources embedded in a complex and disordered structure are able to mutually coordinate their paths through the medium

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Breaking the limits of classical physics

07 June 2012

Researchers from NBI have made a simple experiment that demonstrates that nature violates common sense. The experiment illustrates that light does not behave according to the principles of classical physics...

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Cooling semiconductor by laser light

22 January 2012

Cooling semiconductor by laser lightResearchers at the NBI have combined two worlds – quantum physics and nano physics, and this has led to the discovery of a new method for laser cooling semiconductor membranes

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Two giant grants from the EU to the Niels Bohr Institute

28 October 2011

Two giant grants from the EU to the Niels Bohr InstituteThe Niels Bohr Institute has received two large research grants totalling 35 million kroner from ERC. The two recipients are Eugene Polzik, professor and head of Quantop and Jan Ambjørn, professor with...

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New record for measurement of atomic lifetime

07 September 2011

New record for measurement of atomic lifetime Researchers at NBI have measured the lifetime of a stable energy level of magnesium atoms. The new measurements show a lifetime of up to approx. ½ hour. This is the longest ever measured in a laboratory.

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Quantum optical link sets new time records

17 August 2011

Quantum optical link sets new time records The key component in quantum communication over long distances is entanglement between two atomic systems. Entanglement is very fragile and up until now researchers have only been able to maintain the...

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Quantum dots are not dots

21 December 2010

Quantum dots are not dotsResearchers from the Quantum Photonics Group at DTU Fotonik in collaboration with the Niels Bohr Institute, University of Copenhagen surprise the scientific world with the discovery that light emission from solid-state photon...

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Quantum memory for communication networks of the future

07 November 2010

Quantum memory for communication networks of the futureResearchers from the Niels Bohr Institute have succeeded in storing quantum information using two 'entangled' light beams. Quantum memory is a necessary element of future quantum communication networks...

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Quarks 'swing' to the tones of random numbers

27 September 2010

Quarks 'swing' to the tones of random numbersAt the Large Hadron Collider at CERN protons crash into each other at incredibly high energies in order to 'smash' the protons and to study the elementary particles of nature – including quarks...

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Important step towards quantum communication

05 August 2010

Important step towards quantum communicationFor the first time, researchers from Harvard University and the Niels Bohr Institute have succeeded in connecting information from light to a solid state atom. It is an important step towards quantum communication over...

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Improvement of superconductors within reach

08 July 2010

Improvement of superconductors within reachAn international group of physicists from the University of Augsburg in Germany, the University of Florida in Gainesville, and the Niels Bohr Institute at the University of Copenhagen have succeeded in creating a theoretical...

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Record measurement of extremely small magnetic fields

12 April 2010

Record measurement of extremely small magnetic fieldsResearchers at the research center QUANTOP at the Niels Bohr Institute at the University of Copenhagen have constructed an atomic magnetometer, which has achieved the highest sensitivity allowed by quantum mechanics.

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New light shed on old dispute between Einstein and Bohr

18 January 2010

New light shed on old dispute between Einstein and BohrIn classical physics there are no uncertainties – the properties of matter on an atomic level are deterministic, that is to say predetermined. The theories of quantum mechanics, however, only say something about how...

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