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Description
Boulevard of Broken SymmetriesThis textbook covers the main topics in contemporary condensed matter physics in a modern and unified way, using quantum field theory in the functional integral approach. The book highlights symmetry aspects in acknowledging that much of the collective behaviors of condensed matter systems at low temperatures emerge above a nontrivial ground state, which spontaneously breaks the symmetry. The emphasis is on effective field theories which provide an
This textbook covers the main topics in contemporary condensed matter physics in a modern and unified way, using quantum field theory in the functional-integral approach. The book highlights symmetry aspects in acknowledging that much of the collective behaviors of condensed matter systems at low temperatures emerge above a nontrivial ground state, which spontaneously breaks the symmetry.The emphasis is on effective field theories which provide an efficient and powerful description that is valid at long wavelengths and low frequencies. In conjunction with the emphasis on effective theories, a modern approach towards renormalization is taken, whereby a wavenumber cut-off is introduced to set a scale beyond which the microscopic model under consideration ceases to be valid.The unique and innovative character of this presentation, free of historical constraints, allows for a compact and self-contained treatment of the main topics in contemporary condensed matter physics.Shipping Notes
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★★★★★ 5
Fluffines
Size: Standard (Pack of 2), Style: Medium, Configuration: Hometextile
I am very happy with this Down Alternative Pillow! It is soft, comfortable, and provides great support for my head and neck
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Reviewed in the United States on June 2, 2026
★★★★★ 4
Inexpensive and Nice Quality
Size: Standard (Pack of 2), Style: Medium, Configuration: Hometextile
I was hoping there would be more of a firmness to these pillows, however they are more soft than I was expecting them to be. Id recommend these pillows for someone who wants a fairly non firm pillow.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Almohadas
Size: Standard (Pack of 2), Style: Medium, Configuration: Hometextile
I love them, they are super comfortable and perfect for a perfect relaxed and peaceful sleep
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Soft and Comfortable Pillow
Size: Standard (Pack of 2), Style: Medium, Configuration: Hometextile
This pillow has a soft feel with a nice balance of comfort and support. It fluffs up well after opening and maintains its shape throughout the night. The cover feels smooth, and the overall construction appears well made. A comfortable option for side and back sleepers looking for a plush sleeping experience.
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Reviewed in the United States on June 10, 2026
★★★★★ 3
Not for side sleepers
Size: Standard (Pack of 2), Style: Medium, Configuration: Hometextile
These pillows are quite soft and flat, and offer very little support. I sleep on my side and can't use these pillows. I don't know why they're recommended for side sleepers.
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Reviewed in the United States on July 31, 2025