Decoherence Versus Disentanglement For Two Qubits In A
... X Y ≥ ¼, A squeezed state of the radiation field is obtained if (Xi)2 < ¼, (i =X o Y) An ideal squeezed state is obtained if in addition to above eq. the relation X Y= ¼, also holds. ...
... X Y ≥ ¼, A squeezed state of the radiation field is obtained if (Xi)2 < ¼, (i =X o Y) An ideal squeezed state is obtained if in addition to above eq. the relation X Y= ¼, also holds. ...
Information in statistical physics
... On the other hand, microscopic systems are governed by quantum mechanics. There, physical quantities are mathematically represented as recalled in section 2 by elements of a non-commutative algebra. This feature implies, in particular, Heisenberg’s inequality which expresses that two non-commuting v ...
... On the other hand, microscopic systems are governed by quantum mechanics. There, physical quantities are mathematically represented as recalled in section 2 by elements of a non-commutative algebra. This feature implies, in particular, Heisenberg’s inequality which expresses that two non-commuting v ...
100, 027001 (2008)
... (Sr2 RuO4 ) [13,14] is spin-triplet px ipy . It has been proposed in Ref. [5] that when a thin film of this material is subjected to a magnetic field exceeding 200 G, the most energetically favorable vortices enclose flux hc=4e rather than hc=2e, and at the core of such a half-vortex there is a M ...
... (Sr2 RuO4 ) [13,14] is spin-triplet px ipy . It has been proposed in Ref. [5] that when a thin film of this material is subjected to a magnetic field exceeding 200 G, the most energetically favorable vortices enclose flux hc=4e rather than hc=2e, and at the core of such a half-vortex there is a M ...
Analogue gravity from field theory normal modes?
... physics, attitudes towards effective theories seem to be changing—they are now much more likely to be used, at least as computational tools. As long as one has a clear understanding of when to stop taking them seriously effective theories are perfectly good physics even if they are not ‘fundamental’ ...
... physics, attitudes towards effective theories seem to be changing—they are now much more likely to be used, at least as computational tools. As long as one has a clear understanding of when to stop taking them seriously effective theories are perfectly good physics even if they are not ‘fundamental’ ...
Maritime Applications of Quantum Computation
... Of course, modifying this algorithm for parallel detection of monochromatic electromagnetic waves (as in a digital camera) is a straightforward exercise. So, the spirit of algorithm 1 is: having detected a frequency, a set of n3 qubits is initialized in a spatially-ordered fashion (as a conventional ...
... Of course, modifying this algorithm for parallel detection of monochromatic electromagnetic waves (as in a digital camera) is a straightforward exercise. So, the spirit of algorithm 1 is: having detected a frequency, a set of n3 qubits is initialized in a spatially-ordered fashion (as a conventional ...
Gravity as an Emergent Phenomenon
... experiment. Currently, there exist several potential solutions to reconcile gravity with quantum mechanics, or at least discover the fundamental nature of gravity. The first and most intuitive solution for physicists is to quantize gravity just like how the electromagnetic fields have been. If the o ...
... experiment. Currently, there exist several potential solutions to reconcile gravity with quantum mechanics, or at least discover the fundamental nature of gravity. The first and most intuitive solution for physicists is to quantize gravity just like how the electromagnetic fields have been. If the o ...
Killing time - Department of Physics
... of boundary a n d / o r initial conditions on the acceptable cosmological models of GRT. The boundary conditions selected differ in details very important details with profound implications for our understanding of reality - but it is widely assumed that the origin of inertia is to be found in gravi ...
... of boundary a n d / o r initial conditions on the acceptable cosmological models of GRT. The boundary conditions selected differ in details very important details with profound implications for our understanding of reality - but it is widely assumed that the origin of inertia is to be found in gravi ...
A Chern-Simons E ective Field Theory for the Pfaan Quantum Hall... E. Fradkin , Chetan Nayak , A. Tsvelik
... the c = 1=2 sector of the edge theory. S(z1 ; : : :; zN ) is a symmetric polynomial; this modi cation of the ground state corresponds to the creation of chiral bosonic excitations p in the c = 1 charged sector of the edge theory. At = 1=2, the compacti cation radius of the boson is R = 1= 2. It ca ...
... the c = 1=2 sector of the edge theory. S(z1 ; : : :; zN ) is a symmetric polynomial; this modi cation of the ground state corresponds to the creation of chiral bosonic excitations p in the c = 1 charged sector of the edge theory. At = 1=2, the compacti cation radius of the boson is R = 1= 2. It ca ...
Relativity and Quantum Field Theory
... Ut is a weakly continuous one-parameter group of unitary operators on H with positive energy3, such that there is a 1-1 real linear map K W S ! H with the following properties: (a) The (complex) range of K is dense in H; (b) 2ImhKf ; Kgi D .f; g/ for all f , g S , where h; i is the inner product on ...
... Ut is a weakly continuous one-parameter group of unitary operators on H with positive energy3, such that there is a 1-1 real linear map K W S ! H with the following properties: (a) The (complex) range of K is dense in H; (b) 2ImhKf ; Kgi D .f; g/ for all f , g S , where h; i is the inner product on ...
Quantum Communications in the Maritime Environment
... types. For instance, theoretical analysis has shown that, under certain conditions, a QKD protocol that guarantees the perfect security of underwater blue-green optical communications appears to be feasible with a key generation rate of about 170 kb/s over 100m in clear oceanic waters (Jerlov type I ...
... types. For instance, theoretical analysis has shown that, under certain conditions, a QKD protocol that guarantees the perfect security of underwater blue-green optical communications appears to be feasible with a key generation rate of about 170 kb/s over 100m in clear oceanic waters (Jerlov type I ...
5.2 Functions and Dirac notation
... Bra-ket notation and expansions on basis sets When we write the function in this different form as a vector containing these expansion coefficients we say we have changed its “representation” The function f x is still the same function the vector f x is the same vector in our space We have ...
... Bra-ket notation and expansions on basis sets When we write the function in this different form as a vector containing these expansion coefficients we say we have changed its “representation” The function f x is still the same function the vector f x is the same vector in our space We have ...
A New Form of Matter (pdf, 217 kB)
... we learned about in school. They are not vaporous, not hard, not fluid. Indeed, there are no ordinary words to describe them because they come from another world -- the world of quantum mechanics. Quantum mechanics describes the bizarre rules of light and matter on atomic scales. In that realm, matt ...
... we learned about in school. They are not vaporous, not hard, not fluid. Indeed, there are no ordinary words to describe them because they come from another world -- the world of quantum mechanics. Quantum mechanics describes the bizarre rules of light and matter on atomic scales. In that realm, matt ...