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Self-Correcting Quantum Memory in a Thermal Environment
Stefano Chesi, Beat Röthlisberger, Daniel Loss
The ability to store information is of fundamental importance to any computer, be it classical or quantum. To identify systems for quantum memories which rely, analogously to class…
Thermodynamic stability criteria for a quantum memory based on stabilizer and subsystem codes
Stefano Chesi, Daniel Loss, Sergey Bravyi +1
We discuss and review several thermodynamic criteria that have been introduced to characterize the thermal stability of a self-correcting quantum memory. We first examine the use o…
Numerical evaluation of convex-roof entanglement measures with applications to spin rings
Beat Röthlisberger, Jörg Lehmann, Daniel Loss
We present two ready-to-use numerical algorithms to evaluate convex-roof extensions of arbitrary pure-state entanglement monotones. Their implementation leaves the user merely with…