Monday, April 25, 2016
Friday, April 15, 2016
- Mid- and far-field deviations from causality in spontaneous light emission by atomic Hydrogen
- Master equation for collective spontaneous emission with quantized atomic motion
- Ruschhaupt: Time of arrival in "Time in QM"
- Quantum statistical gravity: time dilation due to local information in many-body quantum systems
Non-Equilibrium Thermodynamics of HarmonicallyTrapped Bosons
-> Loschmidt Echo
Present on optical lattice (+ Spatz article) and eventuaally on spontaneous emission
Digital quantum simulation of many-body non-Markovian dynamics
Stat./Thermo Q. / time of arrival via spontaneous decay (Ruschhaupt) / dissipative process / emergence of "relativistic" properties
Time operator, Zhi-Yong Wang
- old Experimental characterization of bosonic photon creation and annihilation operators
Remarks concerning the status and some ramifications of EHRENFEST’S THEOREM
Friday, June 5, 2015
Ultracold fermions in a honeycomb optical lattice: http://www.quantumlah.org/media/thesis/NCQT_LeeKeanLoon_PhDthesis.pdf
Identifying topological edge states in 2D optical lattices using light scattering: http://arxiv.org/abs/1209.2051
Tuesday, March 31, 2015
QURELSIM (Quantum Simulations of Relativistic Systems): http://cordis.europa.eu/result/rcn/57448_en.html
A relativistic optical-data model for inelastic scattering of electrons and positrons in condensed matter: http://www.researchgate.net/publication/223779547_A_relativistic_optical-data_model_for_inelastic_scattering_of_electrons_and_positrons_in_condensed_matter
Gauge Dynamics and Topological Insulators: http://www.damtp.cam.ac.uk/user/tong/talks/gtop.pdf
Massless and Massive Electrons: Relativistic Physics in Condensed Matter Systems: http://www.phys.virginia.edu/Announcements/Seminars/Slides/S2758.pdf
Dirac Equation For Cold Atoms In Artificial Curved Spacetimes:
Dirac Fermions in Solids — from High Tc cuprates and Graphene to Topological Insulators and Weyl Semimetals.: http://arxiv.org/abs/1306.2272v1
Relativistic quantum effects of Dirac particles simulated by ultracold atoms: http://arxiv.org/abs/1203.5949v1
Relativistic dynamics and Dirac particles in graphene (Nan Gu's PhD thesis, 2011)
Spontaneous Symmetry Breaking and Nambu–Goldstone Bosons in Quantum Many-Body Systems: http://arxiv.org/abs/1001.5212
Fundamental quantum optics experiments conceivable with satellites reaching relativistic distances and velocities: http://arxiv.org/abs/1206.4949
Tale top particle physics with graphene:
Lectures on holographic methods for condensed matter physics: http://arxiv.org/abs/0903.3246
Holographic interaction effects on transport in Dirac semimetals: http://arxiv.org/abs/1403.3608
Spin-liquid phase and order-by-disorder of classical Heisenberg spins on the swedenborgite lattice: http://arxiv.org/pdf/1404.1787v1.pdf
Sunday, February 8, 2015
Open source beats proprietary software, that's what's happening now. Ubuntu thinks to make a favour to their users by blacklisting the FLOSS b43 driver and installing Broadcomm's wl, perhaps believing that things might work more smoothly. Well, that's not true: for example WPA2 doesn't work.
This is what I did to make it work.
I basically deleted (or moved somewhere else) the blacklist file /etc/modprobe.d/blacklist-bcm43.conf.
Then I uninstalled the Broadcomm dritver:
apt-get purge bcmwl-kernel-source
I also commented out the relevant line in /etc/udev/rules.d/70-persistent-net.rules.
Okay, maybe you still need the proprietary firmware, b43-fwcutter or something like that, but it's at least good news that now everything works fine (after just a reboot) and I can use any modern Wi-Fi network.
I'm not sure all of the above is necessary. Certainly b43 works better than wl, as far as I can tell. Certainly Ubuntu does a great effort in tweaking GNU/Linux to give their users a better experience, but sometimes it's more of a problem than a solution. Perhaps it's just time to relax: the regular Linux drivers (the ones that the kernel or udev would automatically load by default), well, they... just work.
Note: in case you wonder:
# lspci -n
02:00.0 0280: 14e4:4727 (rev 01)
Sunday, March 23, 2014
ssh user@machine sh -c 'cat >> ~/.ssh/authorized_keys' < ~/.ssh/id_rsa.pub