SCISSOR - Revision history

Tal at 10:14, 12 June 2024

2024-06-12T10:14:01Z

← Older revision		Revision as of 10:14, 12 June 2024
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	The scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the unoccupied states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, the scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.		The scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the unoccupied states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, the scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged. The scissor operator only shifts empty states, thus partially occupied orbitals are not affected by it.

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Tal at 09:53, 12 June 2024

2024-06-12T09:53:27Z

← Older revision		Revision as of 09:53, 12 June 2024
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	The scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts ~~empty~~ states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, the scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.		The scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the unoccupied states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, the scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.

	== Related tags and articles ==		== Related tags and articles ==

Tal at 09:52, 12 June 2024

2024-06-12T09:52:48Z

← Older revision		Revision as of 09:52, 12 June 2024
Line 5:		Line 5:
	----		----

	The scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts ~~the conduction~~ states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, the scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.		The scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts empty states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, the scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.

	== Related tags and articles ==		== Related tags and articles ==

Tal at 07:09, 11 June 2024

2024-06-11T07:09:57Z

← Older revision		Revision as of 07:09, 11 June 2024
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	~~Scissor~~ operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the conduction states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.		The scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the conduction states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, the scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.

	== Related tags and articles ==		== Related tags and articles ==

Tal at 15:14, 10 June 2024

2024-06-10T15:14:50Z

← Older revision		Revision as of 15:14, 10 June 2024
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	Scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the conduction ~~bands~~ relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.		Scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the conduction states relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.

	== Related tags and articles ==		== Related tags and articles ==

Tal at 15:14, 10 June 2024

2024-06-10T15:14:09Z

← Older revision		Revision as of 15:14, 10 June 2024
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	Scissor operator in GW ~~and BSE~~ calculations shifts the conduction bands relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.		Scissor operator in [[BSE calculations\|BSE]] and [[GW calculations\|GW]] calculations shifts the conduction bands relative to the valence states{{cite\|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.

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Tal: Created page with "{{TAGDEF|SCISSOR|[real]}} {{DEF|SCISSOR|0|}} Description: {{TAG|SCISSOR}} specifies the shift for the scissor operator in eV. ---- Scissor operator in GW and BSE calculations shifts the conduction bands relative to the valence states{{cite|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy..."

2024-06-10T15:08:21Z

Created page with "{{TAGDEF|SCISSOR|[real]}} {{DEF|SCISSOR|0|}} Description: {{TAG|SCISSOR}} specifies the shift for the scissor operator in eV. ---- Scissor operator in GW and BSE calculations shifts the conduction bands relative to the valence states{{cite|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy..."

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{{TAGDEF|SCISSOR|[real]}}
{{DEF|SCISSOR|0|}}

Description: {{TAG|SCISSOR}} specifies the shift for the scissor operator in eV.
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Scissor operator in GW and BSE calculations shifts the conduction bands relative to the valence states{{cite|vincenzo:prb:1995}}. For example, scissor operator can be used in the BSE calculations to match the band gap to the known experimental value, thus achieving the right offset in the calculated spectrum. Notably, unlike the self-energy operator in GW, the scissor operator applies a universal shift to all conduction states, i.e., the shift is independent of energy or momentum and leaves the valence states unchanged.

== Related tags and articles ==
{{TAG|BSE calculations}}

== References ==
<references/>

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[[Category:INCAR tag]][[Category:Bethe-Salpeter_equations]][[Category:Many-body perturbation theory]][[Category:GW]]