News about Quantum physics

Scientific advance leads to a new tool in the fight against hackers

A new form of security identification could soon see the light of day and help us protect our data from hackers and cybercriminals. Quantum mathematicians at the University of Copenhagen have solved a mathematical riddl…

Letizia Catalini

Ph.D. thesis: Nonlinear Phenomena in Dissipation Diluted Nanomechanical Resonators Supervisor: Prof. Dr. Albert Schliesser

Jonas Højsted Dalgaard

Title: Violating Bell's inequality with continuous variables & qubit-cavity interaction Supervisor: Anders Søndberg Sørensen

Breakthrough of the year

Our team at the Quantum Optics group (QUANTOP) at the Niels Bohr Institute has applied the basic principle behind these achievements for quantum entanglement between very distant and different quantum objects,” says…

Yannick Seis

Ultra-Coherent Electro-Mechanics in the Quantum Regime Supervisor: Prof. Dr. Albert Schliesser

Buyuan Luo

Title: Selection Rules of a simple model of a Quantum Dot Supervisor: Anders Søndberg Sørensen

Ultracoherent mechanical devices

Similarly, a phononic crystal is a fabricated object with a repeating pattern that gives it a particularly useful property – a bandgap that forbids the propagation of motion at certain frequencies. This allows us to…

Innovative chip built by UCPH physicists resolves quantum headache

Quantum physicists at the University of Copenhagen are reporting an international achievement for Denmark in the field of quantum technology. By simultaneously operating multiple spin qubits on the same quantum chip,…

Innovative chip built by UCPH physicists resolves quantum headache

Quantum physicists at the University of Copenhagen are reporting an international achievement for Denmark in the field of quantum technology. By simultaneously operating multiple spin qubits on the same quantum chip,…

Laurits Høgel

Positioned InAs Quantum Dots from Selective Area Growth - Manufacturing, Characterization and Optical Measurements Supervisors: Peter Lodahl and Peter Krogstrup

Sif Kristine Fugger

Title: Design and characterization of nano-mechanical quantum photonic devices Supervisors: Leonardo Midolo, Peter Lodahl

Arianne Brooks

Whispering-gallery-modes in QD-embedded micro disc resonators for optical routing Supervisors: Nir Rotenberg, Leonardo Midolo and Peter Lodahl

Sampo Saarinen

Optomechanics at the room temperature - Towards classical and quantum applications Supervisor: Prof. Dr. Albert Schliesser

Asli Dilara Ugurlu

Novel Optical Polymer-Based Interfaces to Quantum Photonic Integrated Circuits Supervisors: Prof. Peter Lodahl & Assoc. Prof. Leonardo Midolo

Martin Hayhurst Appel

A Quantum Dot Source of Time-Bin Multi-Photon Entanglement Supervisors: Prof. Peter Lodahl & Dr. Alexey Tiranov

Ying Wang

Novel nanofabrication methods and processes for antum photonic integrated circuits Supervisor: Peter Lodahl & Leonardo Midolo

Jeppe Detlefsen

3D-printed fiber-coupled vapor-cell magnetometer Supervisor: Eugene S. Polzik

Clara Celeste Qvotrup

Title: Deflecting waveguides for three-dimensional quantum photonic integrated circuits Supervisor: Leonardo Midolo

New invention keeps qubits of light stable at room temperature

Researchers from University of Copenhagen have developed a new technique that keeps quantum bits of light stable at room temperature instead of only working at -270 degrees. Their discovery saves power and money and is …

Miren Lamaison Vidarte

Title: Photonic Control-Phase gate based on emitters with chiral interactions Supervisor: Anders Søndberg Sørensen

Mikkel Thorbjørn Mikkelsen

Title: Multiphoton and heralded entanglement sources for applications in quantum cryptography Supervisors: Peter Lodahl, Ravitej Uppu

Physics students train on IBM Quantum technology

The Niels Bohr Institute will start training future generations of quantum physicists, next winter, when undergraduate students in the physics program will take courses that include using IBM's cloud-based quantum…

Iñigo Lara Izcue

Towards percolation-based quantum computing with a photonic machine gun Supervisor: Anders S. Sørensen

Carlos Fernando Duarte Faurby

Title: Frequency conversion of single photons for long distance quantum communication Supervisors: Leonardo Midolo, Xiaoyan Zhou, Beatrice da Lio