====== Quantum Phase Transitions ======
quantum phase transitions that studies the changes that may occur in the macroscopic properties of matter at zero temperature (i.e., T = 0) due to changes in the parameters characterizing the system. https://arxiv.org/pdf/cond-mat/0207106.pdf
Explanations in this section should contain no formulas, but instead colloquial things like you would hear them during a coffee break or at a cocktail party. Quantum Phase Transitions by Subir Sachdev The motto in this section is: //the higher the level of abstraction, the better//. --> Common Question 1# <-- --> Common Question 2# <-- --> Example1# <-- --> Example2:# <--