Dilution-Controlled Quantum Criticality in Rare-Earth Nickelates J.V. Alvarez, H. Rieger, and A. Zheludev
... systems. We show that the ordering temperature is a universal function of xch if x 1. In addition, we derive an effective model for the critical modes, discussing whether the system is ordered down to zero concentration x or can support a quantum critical point. Model.—A microscopic model for Rx ...
... systems. We show that the ordering temperature is a universal function of xch if x 1. In addition, we derive an effective model for the critical modes, discussing whether the system is ordered down to zero concentration x or can support a quantum critical point. Model.—A microscopic model for Rx ...
Environment-assisted quantum control of a solid
... external magnetic field. This field also controls the selection rules of the optical transitions enabling, for example, optical single-shot spin readout16-18 and fast spin manipulation2,19 in selfassembled quantum dots (QDs). Unfortunately, these two capabilities require different alignments of the ...
... external magnetic field. This field also controls the selection rules of the optical transitions enabling, for example, optical single-shot spin readout16-18 and fast spin manipulation2,19 in selfassembled quantum dots (QDs). Unfortunately, these two capabilities require different alignments of the ...
Relations between Massive and Massless one
... one-particle states are described detailed. The massive particle with spin s has 2s+1 one-particle states. The massless particle with spin s has only two one-particle states. There is a large gap between them. The paper proves that massive one-particle states’ transformation can continuously change ...
... one-particle states are described detailed. The massive particle with spin s has 2s+1 one-particle states. The massless particle with spin s has only two one-particle states. There is a large gap between them. The paper proves that massive one-particle states’ transformation can continuously change ...
Quantum Technology: Putting Weirdness To Use
... Why doesn’t the electron collapse onto the nucleus of an atom? Why are there thermodynamic anomalies in materials at low temperature? Why is light emitted at discrete colors? ...
... Why doesn’t the electron collapse onto the nucleus of an atom? Why are there thermodynamic anomalies in materials at low temperature? Why is light emitted at discrete colors? ...
Document
... Quantum De Finetti theorem: Given a symmetric system, almost all of its parts are virtually identical and independent of each other. This result generalises de Finetti's classical representation theorem for Renner infinitely exchangeable sequences of random variables. ...
... Quantum De Finetti theorem: Given a symmetric system, almost all of its parts are virtually identical and independent of each other. This result generalises de Finetti's classical representation theorem for Renner infinitely exchangeable sequences of random variables. ...
Syllabus for the course
... Useful information can be obtained on the Web page for the course and MolData, an annotated bibliography of reliable databases on the WWW. The links to these and other pages maintained by the instructor can be found at http://pages.pomona.edu/~wsteinmetz. The schedule of the topics to be covered in ...
... Useful information can be obtained on the Web page for the course and MolData, an annotated bibliography of reliable databases on the WWW. The links to these and other pages maintained by the instructor can be found at http://pages.pomona.edu/~wsteinmetz. The schedule of the topics to be covered in ...
Quantum Information and Quantum Computation
... Chapter 43. Quantum Information and Quantum Computation Researchers at the W.M. Keck Center for Extreme Quantum Information Theory (xQIT) are Working to investigate the limits of computation and communication. We are working to uncover the abilities of quantum computers to solve hard problems. We a ...
... Chapter 43. Quantum Information and Quantum Computation Researchers at the W.M. Keck Center for Extreme Quantum Information Theory (xQIT) are Working to investigate the limits of computation and communication. We are working to uncover the abilities of quantum computers to solve hard problems. We a ...
Are Quantum States Exponentially Long Vectors?
... also do with polynomial-size classical advice, provided you’re willing to use exponentially more computation time (or settle for an exponentially small probability of success).6 On the other hand, since NP ⊆ PP, this result still says nothing about whether a quantum computer with quantum advice cou ...
... also do with polynomial-size classical advice, provided you’re willing to use exponentially more computation time (or settle for an exponentially small probability of success).6 On the other hand, since NP ⊆ PP, this result still says nothing about whether a quantum computer with quantum advice cou ...
量子力學
... 9. Find bound-state eigenenergies of a particle in an attractive potential, V(x)=–aVo (x). 10. A particle is moving along the x-axis. Find the transmission probability of this particle through a delta-function potential barrier at the origin V(x)= aVo (x). 11. (a) Determine eigenenergies and cor ...
... 9. Find bound-state eigenenergies of a particle in an attractive potential, V(x)=–aVo (x). 10. A particle is moving along the x-axis. Find the transmission probability of this particle through a delta-function potential barrier at the origin V(x)= aVo (x). 11. (a) Determine eigenenergies and cor ...
Quantum criticality and dyonic black holes
... Talk online at http://sachdev.physics.harvard.edu ...
... Talk online at http://sachdev.physics.harvard.edu ...
Bell's theorem
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Bell's theorem is a ‘no-go theorem’ that draws an important distinction between quantum mechanics (QM) and the world as described by classical mechanics. This theorem is named after John Stewart Bell.In its simplest form, Bell's theorem states:Cornell solid-state physicist David Mermin has described the appraisals of the importance of Bell's theorem in the physics community as ranging from ""indifference"" to ""wild extravagance"". Lawrence Berkeley particle physicist Henry Stapp declared: ""Bell's theorem is the most profound discovery of science.""Bell's theorem rules out local hidden variables as a viable explanation of quantum mechanics (though it still leaves the door open for non-local hidden variables). Bell concluded:Bell summarized one of the least popular ways to address the theorem, superdeterminism, in a 1985 BBC Radio interview: