Enter your search into one or more of the boxes below:
You can refine your search by selecting from any of the options below:
Phase Space Methods for Degenerate Quantum Gases

Phase Space Methods for Degenerate Quantum Gases (Hardback)

To Order. Estimated despatch in 1-3 weeks.
Email me when back in stock


Recent experimental progress has enabled cold atomic gases to be studied at nano-kelvin temperatures, creating new states of matter where quantum degeneracy occurs - Bose-Einstein condensates and degenerate Fermi gases. Such quantum states are of macroscopic dimensions. This book presents the phase space theory approach for treating the physics of degenerate quantum gases, an approach already widely used in quantum optics. However, degenerate quantum gases involve massive bosonic and fermionic atoms, not massless photons. The book begins with a review of Fock states for systems of identical atoms, where large numbers of atoms occupy the various single particle states or modes. First, separate modes are considered, and here the quantum density operator is represented by a phase space distribution function of phase space variables which replace mode annihilation, creation operators, the dynamical equation for the density operator determines a Fokker-Planck equation for the distribution function, and measurable quantities such as quantum correlation functions are given as phase space integrals.

Finally, the phase space variables are replaced by time dependent stochastic variables satisfying Langevin stochastic equations obtained from the Fokker-Planck equation, with stochastic averages giving the measurable quantities. Second, a quantum field approach is treated, the density operator being represented by a distribution functional of field functions which replace field annihilation, creation operators, the distribution functional satisfying a functional FPE, etc. A novel feature of this book is that the phase space variables for fermions are Grassmann variables, not c-numbers. However, we show that Grassmann distribution functions and functionals still provide equations for obtaining both analytic and numerical solutions. The book includes the necessary mathematics for Grassmann calculus and functional calculus, and detailed derivations of key results are provided.

Bryan Dalton obtained a PhD degree in 1966 from Monash University. Following postdoctoral positions at University of Chicago and Australian National University, he joined the Department of Physics, University of Queensland in 1970, retiring as a Reader in 2000. His research was in theoretical quantum optics on topics such as non-classical states of light, coherent population trapping, laser-induced continuum structures, quantum beats, squeezed light spectroscopy and macroscopic cavity quantum electrodynamics. After 2000, he held research fellow positions at University of Sussex and Swinburne University of Technology, where he is currently an Adjunct Professor. He recently spent six months at University College, Cork as an ETS Walton Visiting Fellow. His more recent research interests have included decoherence effects in quantum computers, phase space theory in quantum and atom optics for Bose-Einstein condensates and Fermi gases, and entanglement theory for identical particle systems. John Jeffers is a Reader in the Physics Department at the University of Strathclyde and has been a researcher in quantum optics for twenty years. He obtained his PhD in Theoretical Physics from the University of Essex in 1993. Since then his research interests have included quantum dielectrics, quantum imaging, retrodictive quantum theory, quantum communication, quantum optical amplification and degenerate quantum gases. Stephen Barnett has been Professor of Quantum Optics since 1995, first at the University of Strathclyde and more recently at the University of Glasgow. He is best known for his discovery, with David Pegg, of the quantum phase operator, but he has wide-spread interests in quantum optics, quantum information, optics and, of course, cold-atom physics. His work has been recognised by the Royal Society, the Royal Society of Edinburgh and the Optical Society of America, all of which have elected him a Fellow. He was awarded the 2013 Dirac Medal and Prize for theoretical physics by the Institute of Physics.

More books by Bryan J. Dalton

More books by John Jeffers

More books by Stephen M. Barnett

Leave Review


Delivery Options

All delivery times quoted are the average, and cannot be guaranteed. These should be added to the availability message time, to determine when the goods will arrive. During checkout we will give you a cumulative estimated date for delivery.

Location 1st Book Each additional book Average Delivery Time
UK Standard Delivery FREE FREE 3-5 Days
UK First Class £4.50 £1.00 1-2 Days
UK Courier £7.00 £1.00 1-2 Days
Western Europe** Courier £17.00 £3.00 2-3 Days
Western Europe** Airmail £5.00 £1.50 4-14 Days
USA / Canada Courier £20.00 £3.00 2-4 Days
USA / Canada Airmail £7.00 £3.00 4-14 Days
Rest of World Courier £22.50 £3.00 3-6 Days
Rest of World Airmail £8.00 £3.00 7-21 Days

** Includes Austria, Belgium, Denmark, France, Germany, Greece, Iceland, Irish Republic, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden and Switzerland.

Delivery Help & FAQs

Returns Information

If you are not completely satisfied with your purchase*, you may return it to us in its original condition with in 30 days of receiving your delivery or collection notification email for a refund. Except for damaged items or delivery issues the cost of return postage is borne by the buyer. Your statutory rights are not affected.

* For Exclusions and terms on damaged or delivery issues see Returns Help & FAQs

You might also like

Fluid Dynamics: Part 3 Boundary Layers
Anatoly I. Ruban
Quantum Monte Carlo Approaches for...
Federico Becca
First Order Phase Transitions of...
Praveen Chaddah
Bulk Metallic Glasses, Second Edition
C. Suryanarayana; A. Inoue
Latest Blog
Why Little Women is the Perfect Christmas Read

Publisher of the Macmillan Collectors Library, Harriet Sanders, celebrates the arrival on tv this Christmas of Little Women

#FoylesFive: Foreign Languages Part Two

Our knowledgeable Languages Department have put together a great selection of books, to help share the magic of reading in every language. Here are their Dutch, Russian and Polish selections.

#FoylesFive: The Last Jedi

As Star Wars: The Last Jedi drops out of hyperspace and into a cinema near you, Matt from our Web Team gives us his selection of the best Last Jedi books.

View all Blog Entries
Show/Hide Tweets
© W&G Foyle Ltd