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Physicists have developed a novel method to measure quantum entanglement by using a quantum memory system as a ‘Maxwell’s demon’ to facilitate heat transfer between entangled systems. This technique allows indirect detection of quantum states without disturbing them, as it relies on observing energy changes in a heat sink. The approach has potential applications in quantum computing and could help explore whether gravity is a quantum force. The method is described as simple and general, making it a valuable tool for verifying quantum entanglement in various systems. This breakthrough bridges quantum mechanics and thermodynamics, offering new ways to study quantum phenomena.

Key facts

  • Researchers have created a method to detect quantum entanglement using a quantum memory system that acts as a ‘Maxwell’s demon’.
  • This technique enables indirect measurement of quantum states without disturbing them by observing energy changes in a heat sink.
  • The method has potential applications in quantum computing and could help explore whether gravity is a quantum force.
  • The approach is described as simple and general, making it a valuable tool for verifying quantum entang, in various systems.
  • This breakthrough connects quantum mechanics and thermodynamics, offering new ways to study quantum phenomena.
See article on Wired Science
TAGS: #entanglement detection  #Maxwell's demon  #Quantum computing  #quantum mechanics  #quantum physics  #thermodynamics