Quantum Physics

Displaying 1465 - 1476 of 2239

12/13 PSI - Explorations on Quantum Information Lecture 12

David Cory Institute for Quantum Computing (IQC)
April 03, 2013

PIRSA:13040035
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 11

David Cory Institute for Quantum Computing (IQC)
April 02, 2013

PIRSA:13040034
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 10

David Cory Institute for Quantum Computing (IQC)
April 01, 2013

PIRSA:13040033
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 9

David Cory Institute for Quantum Computing (IQC)
March 28, 2013

PIRSA:13030064
Quantum Physics
Quoins versus Coins

Terry Rudolph Imperial College London
March 27, 2013

PIRSA:13030000
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 8

David Cory Institute for Quantum Computing (IQC)
March 27, 2013

PIRSA:13030063
Quantum Physics
The Quantum Steering Ellipsoid

Sania Jevtic Imperial College London
March 26, 2013

PIRSA:13030112
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 7

David Cory Institute for Quantum Computing (IQC)
March 26, 2013

PIRSA:13030062
Quantum Physics
Wick's theorem for Matrix Product states

Robert Huebener Freie Universität Berlin
March 25, 2013

PIRSA:13030117
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 6

David Cory Institute for Quantum Computing (IQC)
March 25, 2013

PIRSA:13030061
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 5

David Cory Institute for Quantum Computing (IQC)
March 22, 2013

PIRSA:13030058
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 4

David Cory Institute for Quantum Computing (IQC)
March 21, 2013

PIRSA:13030057
Quantum Physics

12/13 PSI - Explorations on Quantum Information Lecture 12

David Cory Institute for Quantum Computing (IQC)
April 03, 2013

PIRSA:13040035
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 11

David Cory Institute for Quantum Computing (IQC)
April 02, 2013

PIRSA:13040034
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 10

David Cory Institute for Quantum Computing (IQC)
April 01, 2013

PIRSA:13040033
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 9

David Cory Institute for Quantum Computing (IQC)
March 28, 2013

PIRSA:13030064
Quantum Physics
Quoins versus Coins

Terry Rudolph Imperial College London
March 27, 2013

PIRSA:13030000
Quantum Physics
Human monkeys are used to thinking about the problem of choosing from a set of objects according to some desired, biased, probability distribution. Just think about how you chose your partner(s). Even when it is easy for you to do such a sampling, it can be difficult to do a quantum sampling (Q-Sampling) of the same distribution. By Q-Sampling I mean the creation of a coherent superposition of states of such objects whose amplitudes are the (square roots of) of the specified distribution. In this talk I will discuss what we do know about this problem, why it is interesting, and will discuss how it can let us achieve tasks with quantum information that are provably impossible classically.
12/13 PSI - Explorations on Quantum Information Lecture 8

David Cory Institute for Quantum Computing (IQC)
March 27, 2013

PIRSA:13030063
Quantum Physics
The Quantum Steering Ellipsoid

Sania Jevtic Imperial College London
March 26, 2013

PIRSA:13030112
Quantum Physics
A quantum steering ellipsoid may be used to faithfully represent a density matrix ? describing two qubits A and B. The ellipsoid is the geometric set of states that Bob can steer Alice's qubit to when he implements all possible measurements on his qubit. We show how the correlations between qubits A and B manifest themselves in this paradigm, giving simple conditions for when the state is entangled, or has discord. We will also present novel features of the two qubit state that are revealed by the steering ellipsoid formalism, and show that a state corresponding to an ellipsoid with non-zero volume contains a new type of correlation.
12/13 PSI - Explorations on Quantum Information Lecture 7

David Cory Institute for Quantum Computing (IQC)
March 26, 2013

PIRSA:13030062
Quantum Physics
Wick's theorem for Matrix Product states

Robert Huebener Freie Universität Berlin
March 25, 2013

PIRSA:13030117
Quantum Physics
Matrix product states and their continuous analogues are variational classes of states that capture quantum many-body systems or quantum fields with low entanglement; they are at the basis of the density-matrix renormalization group method and continuous variants thereof. In this talk we show that, generically, N-point functions of arbitrary operators in discrete and continuous translation invariant matrix product states are completely characterized by the corresponding two- and three-point functions. Aside from having important consequences for the structure of correlations in quantum states with low entanglement, this result provides a new way of reconstructing unknown states from correlation measurements e.g. for one-dimensional continuous systems of cold atoms. We argue that such a relation of correlation functions may help in devising perturbative approaches to interacting theories.

Joint work with Andrea Mari and Jens Eisert.
arXiv:1207.6537
12/13 PSI - Explorations on Quantum Information Lecture 6

David Cory Institute for Quantum Computing (IQC)
March 25, 2013

PIRSA:13030061
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 5

David Cory Institute for Quantum Computing (IQC)
March 22, 2013

PIRSA:13030058
Quantum Physics
12/13 PSI - Explorations on Quantum Information Lecture 4

David Cory Institute for Quantum Computing (IQC)
March 21, 2013

PIRSA:13030057
Quantum Physics

Title	Speaker(s)	Date	Talk Type	Info link
12/13 PSI - Explorations on Quantum Information Lecture 12	David Cory	2013-04-03	Course	View details
12/13 PSI - Explorations on Quantum Information Lecture 11	David Cory	2013-04-02	Course	View details
12/13 PSI - Explorations on Quantum Information Lecture 10	David Cory	2013-04-01	Course	View details
12/13 PSI - Explorations on Quantum Information Lecture 9	David Cory	2013-03-28	Course	View details
Quoins versus Coins	Terry Rudolph	2013-03-27	Scientific Series	View details
12/13 PSI - Explorations on Quantum Information Lecture 8	David Cory	2013-03-27	Course	View details
The Quantum Steering Ellipsoid	Sania Jevtic	2013-03-26	Scientific Series	View details
12/13 PSI - Explorations on Quantum Information Lecture 7	David Cory	2013-03-26	Course	View details
Wick's theorem for Matrix Product states	Robert Huebener	2013-03-25	Scientific Series	View details
12/13 PSI - Explorations on Quantum Information Lecture 6	David Cory	2013-03-25	Course	View details
12/13 PSI - Explorations on Quantum Information Lecture 5	David Cory	2013-03-22	Course	View details
12/13 PSI - Explorations on Quantum Information Lecture 4	David Cory	2013-03-21	Course	View details

Supported by

Format results

12/13 PSI - Explorations on Quantum Information Lecture 12

12/13 PSI - Explorations on Quantum Information Lecture 11

12/13 PSI - Explorations on Quantum Information Lecture 10

12/13 PSI - Explorations on Quantum Information Lecture 9

Quoins versus Coins

12/13 PSI - Explorations on Quantum Information Lecture 8

The Quantum Steering Ellipsoid

12/13 PSI - Explorations on Quantum Information Lecture 7

Wick's theorem for Matrix Product states

12/13 PSI - Explorations on Quantum Information Lecture 6

12/13 PSI - Explorations on Quantum Information Lecture 5

12/13 PSI - Explorations on Quantum Information Lecture 4

12/13 PSI - Explorations on Quantum Information Lecture 12

12/13 PSI - Explorations on Quantum Information Lecture 11

12/13 PSI - Explorations on Quantum Information Lecture 10

12/13 PSI - Explorations on Quantum Information Lecture 9

Quoins versus Coins

12/13 PSI - Explorations on Quantum Information Lecture 8

The Quantum Steering Ellipsoid

12/13 PSI - Explorations on Quantum Information Lecture 7

Wick's theorem for Matrix Product states

12/13 PSI - Explorations on Quantum Information Lecture 6

12/13 PSI - Explorations on Quantum Information Lecture 5

12/13 PSI - Explorations on Quantum Information Lecture 4