What are the latest research trends and resources on entanglement entropy?

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Entanglement entropy is a measure of quantum entanglement, quantifying how much information is lost when a quantum system is divided into subsystems. Current research trends focus on its applications in quantum information theory, condensed matter physics, and quantum gravity. Key areas of exploration include the role of entanglement entropy in black hole thermodynamics and its implications for quantum phase transitions. Useful resources for further study include academic papers available on arXiv, particularly in the physics category. Engaging with these materials can provide deeper insights into the evolving landscape of entanglement entropy research.
wam_mi
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Hi All,

(i) Could anyone tell me what entanglement entropy is and what is currently the directions of research on this topic?

(ii) where can I find useful sources of this subject apart from Wikipedia?

Thank you!
 
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Thread 'Two equivalent statements of time reversal symmetric Hamiltonian'

Time reversal invariant Hamiltonians must satisfy ##[H,\Theta]=0## where ##\Theta## is time reversal operator. However, in some texts (for example see Many-body Quantum Theory in Condensed Matter Physics an introduction, HENRIK BRUUS and KARSTEN FLENSBERG, Corrected version: 14 January 2016, section 7.1.4) the time reversal invariant condition is introduced as ##H=H^*##. How these two conditions are identical?
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