News about Quantum physics

Zihua Wang

Title: Characterization of high-Q ultralight membranes towards novel optomechanical designs Supervisors: Prof. Eugene Simon Polzik, Dr. Georg Enzian

A quantum drum that stores quantum states for record-long times

With a coherence time of one hundred milliseconds, the membrane can for example store sensitive quantum information for further processing in a quantum computer or network.

Alan Sven Oesterle

Title: Quantum Enhanced Optical Magnetic Induction Tomography through Back-Action Evasion and Conditional Spin Squeezing Supervisor: Prof. Eugene Simon Polzik

Georgia Anyfantaki

Title: Characterization of quantum state of light emitted by quantum emitter Supervisors: Alexey Tiranov, Peter Lodahl

Isaac Roca Caritg

Title: Experimental implementation of a Top Hat beam shaper Supervisor: Prof. Eugene Simon Polzik

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 …