activity
19962023
most citedBloch vectors for qudits

387 citations · 2.4k across the 38 of their papers we have counts for

collaborators

38 papers

physics.hist-ph2023

Magic Moments: A Collaboration with John Bell

R. A. Bertlmann

I want to give an impression of the time I spent together with John S. Bell, of the atmosphere of our collaboration and friendship. I briefly review our work, the methods of nonrel…

physics.hist-ph2023

The Laureates of the Nobel Prize in Physics 2022. Some personal memories

Reinhold A. Bertlmann

Some personal memories of the Nobel Prize Winners 2022 Alain Aspect, John Clauser, and Anton Zeilinger are summarized and the significance of their works is described in a historic…

physics.hist-ph2020★ 6 cited

Real or Not Real that is the question

Reinhold A. Bertlmann

My discussions with John Bell about reality in quantum mechanics are recollected. I would like to introduce the reader to Bell's vision of reality which was for him a natural posit…

quant-ph2016★ 52 cited

Geometry of two-qubit states with negative conditional entropy

Nicolai Friis, Sridhar Bulusu, Reinhold A. Bertlmann

We review the geometric features of negative conditional entropy and the properties of the conditional amplitude operator proposed by Cerf and Adami for two qubit states in compari…

physics.hist-ph2016

Bell's Universe: A Personal Recollection

Reinhold A. Bertlmann

My collaboration and friendship with John Bell is recollected. I will explain his outstanding contributions in particle physics, in accelerator physics, and his joint work with Mar…

physics.hist-ph2014★ 9 cited

John Bell and the Nature of the Quantum World

Reinhold A. Bertlmann

I present my encounter with John Bell at CERN, our collaboration and joint work in particle physics. I also will recall our quantum debates and give my personal view on Bell's fund…